Home / 82,519.20-123,778.68-29,928.56

Finding the Fourth Proportional to 82,519.20, 123,778.68 and 29,928.56

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Solution

The fourth proportional to 82,519.20, 123,778.68 and 29,928.56 is: 44,892.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,519.20 : 123,778.68 = 29,928.56 : x
  2. Step 2: Convert to fraction form
    82,519.20/123,778.68 = 29,928.56/x
  3. Step 3: Cross multiply
    82,519.20x = 123,778.68 × 29,928.56
  4. Step 4: Simplify right side
    82,519.20x = 3,704,517,651.10
  5. Step 5: Solve for x
    x = 3,704,517,651.10/82,519.20
  6. Step 6: Final answer
    x = 44,892.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.