Home / 82,520.16-123,760.33-38,104.22

Finding the Fourth Proportional to 82,520.16, 123,760.33 and 38,104.22

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Solution

The fourth proportional to 82,520.16, 123,760.33 and 38,104.22 is: 57,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,520.16 : 123,760.33 = 38,104.22 : x
  2. Step 2: Convert to fraction form
    82,520.16/123,760.33 = 38,104.22/x
  3. Step 3: Cross multiply
    82,520.16x = 123,760.33 × 38,104.22
  4. Step 4: Simplify right side
    82,520.16x = 4,715,790,127.53
  5. Step 5: Solve for x
    x = 4,715,790,127.53/82,520.16
  6. Step 6: Final answer
    x = 57,147.13

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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.