Math Problem Statement

Solve the proportion: y/9 = 44/54. Find the value of y.

Solution

To solve the proportion y9=4454\frac{y}{9} = \frac{44}{54}, we can use cross-multiplication. This means we multiply the numerator of one side by the denominator of the other side:

y×54=9×44y \times 54 = 9 \times 44

Now, solving for yy:

54y=39654y = 396

Next, divide both sides by 54:

y=39654y = \frac{396}{54}

Simplifying the fraction:

y=7.33(rounded to two decimal places)y = 7.33 \quad (\text{rounded to two decimal places})

So, y=7.33y = 7.33.

Would you like further details on how the cross-multiplication method works, or have any other questions?

Here are some related questions:

  1. How do you simplify fractions in algebra?
  2. What is the significance of proportions in real-world applications?
  3. How do you solve for variables in other algebraic equations?
  4. Can you explain other methods for solving proportions?
  5. How can you check your answer once you have solved the proportion?

Tip: Always check if the fractions can be simplified before performing cross-multiplication.

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Math Problem Analysis

Mathematical Concepts

Algebra
Proportions
Cross-Multiplication
Fraction Simplification

Formulas

Cross-Multiplication Formula: a/b = c/d implies a*d = b*c

Theorems

Basic Proportion Theorem

Suitable Grade Level

Grades 6-8