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Finding the Fourth Proportional to 87,843.60, 131,765.40 and 52,765.20

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Solution

The fourth proportional to 87,843.60, 131,765.40 and 52,765.20 is: 79,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,843.60 : 131,765.40 = 52,765.20 : x
  2. Step 2: Convert to fraction form
    87,843.60/131,765.40 = 52,765.20/x
  3. Step 3: Cross multiply
    87,843.60x = 131,765.40 × 52,765.20
  4. Step 4: Simplify right side
    87,843.60x = 6,952,627,684.08
  5. Step 5: Solve for x
    x = 6,952,627,684.08/87,843.60
  6. Step 6: Final answer
    x = 79,147.80

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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.