Home / 87,617.20-131,447.73-25,287.70

Finding the Fourth Proportional to 87,617.20, 131,447.73 and 25,287.70

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Solution

The fourth proportional to 87,617.20, 131,447.73 and 25,287.70 is: 37,937.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,617.20 : 131,447.73 = 25,287.70 : x
  2. Step 2: Convert to fraction form
    87,617.20/131,447.73 = 25,287.70/x
  3. Step 3: Cross multiply
    87,617.20x = 131,447.73 × 25,287.70
  4. Step 4: Simplify right side
    87,617.20x = 3,324,010,761.92
  5. Step 5: Solve for x
    x = 3,324,010,761.92/87,617.20
  6. Step 6: Final answer
    x = 37,937.88

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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.