Home / 42,718.38-63,951.39-31,550.90

Finding the Fourth Proportional to 42,718.38, 63,951.39 and 31,550.90

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Solution

The fourth proportional to 42,718.38, 63,951.39 and 31,550.90 is: 47,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,718.38 : 63,951.39 = 31,550.90 : x
  2. Step 2: Convert to fraction form
    42,718.38/63,951.39 = 31,550.90/x
  3. Step 3: Cross multiply
    42,718.38x = 63,951.39 × 31,550.90
  4. Step 4: Simplify right side
    42,718.38x = 2,017,723,910.75
  5. Step 5: Solve for x
    x = 2,017,723,910.75/42,718.38
  6. Step 6: Final answer
    x = 47,233.16

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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.