Home / 87,760.92-131,652.30-28,580.70

Finding the Fourth Proportional to 87,760.92, 131,652.30 and 28,580.70

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Solution

The fourth proportional to 87,760.92, 131,652.30 and 28,580.70 is: 42,874.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,760.92 : 131,652.30 = 28,580.70 : x
  2. Step 2: Convert to fraction form
    87,760.92/131,652.30 = 28,580.70/x
  3. Step 3: Cross multiply
    87,760.92x = 131,652.30 × 28,580.70
  4. Step 4: Simplify right side
    87,760.92x = 3,762,714,890.61
  5. Step 5: Solve for x
    x = 3,762,714,890.61/87,760.92
  6. Step 6: Final answer
    x = 42,874.61

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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.