Home / 63,542.57-87,691.07-38,387.21

Finding the Fourth Proportional to 63,542.57, 87,691.07 and 38,387.21

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Solution

The fourth proportional to 63,542.57, 87,691.07 and 38,387.21 is: 52,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,542.57 : 87,691.07 = 38,387.21 : x
  2. Step 2: Convert to fraction form
    63,542.57/87,691.07 = 38,387.21/x
  3. Step 3: Cross multiply
    63,542.57x = 87,691.07 × 38,387.21
  4. Step 4: Simplify right side
    63,542.57x = 3,366,215,176.73
  5. Step 5: Solve for x
    x = 3,366,215,176.73/63,542.57
  6. Step 6: Final answer
    x = 52,975.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.