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Finding the Fourth Proportional to 63,761.38, 87,981.42 and 38,262.32

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Solution

The fourth proportional to 63,761.38, 87,981.42 and 38,262.32 is: 52,796.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,761.38 : 87,981.42 = 38,262.32 : x
  2. Step 2: Convert to fraction form
    63,761.38/87,981.42 = 38,262.32/x
  3. Step 3: Cross multiply
    63,761.38x = 87,981.42 × 38,262.32
  4. Step 4: Simplify right side
    63,761.38x = 3,366,373,451.66
  5. Step 5: Solve for x
    x = 3,366,373,451.66/63,761.38
  6. Step 6: Final answer
    x = 52,796.44

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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.