Home / 87,411.60-131,182.20-57,819.60

Finding the Fourth Proportional to 87,411.60, 131,182.20 and 57,819.60

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Solution

The fourth proportional to 87,411.60, 131,182.20 and 57,819.60 is: 86,772.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,411.60 : 131,182.20 = 57,819.60 : x
  2. Step 2: Convert to fraction form
    87,411.60/131,182.20 = 57,819.60/x
  3. Step 3: Cross multiply
    87,411.60x = 131,182.20 × 57,819.60
  4. Step 4: Simplify right side
    87,411.60x = 7,584,902,331.12
  5. Step 5: Solve for x
    x = 7,584,902,331.12/87,411.60
  6. Step 6: Final answer
    x = 86,772.26

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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.