Home / 87,917.76-131,863.20-28,753.92

Finding the Fourth Proportional to 87,917.76, 131,863.20 and 28,753.92

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Solution

The fourth proportional to 87,917.76, 131,863.20 and 28,753.92 is: 43,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,917.76 : 131,863.20 = 28,753.92 : x
  2. Step 2: Convert to fraction form
    87,917.76/131,863.20 = 28,753.92/x
  3. Step 3: Cross multiply
    87,917.76x = 131,863.20 × 28,753.92
  4. Step 4: Simplify right side
    87,917.76x = 3,791,583,903.74
  5. Step 5: Solve for x
    x = 3,791,583,903.74/87,917.76
  6. Step 6: Final answer
    x = 43,126.48

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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.