Home / 87,646.20-131,365.48-40,221.31

Finding the Fourth Proportional to 87,646.20, 131,365.48 and 40,221.31

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Solution

The fourth proportional to 87,646.20, 131,365.48 and 40,221.31 is: 60,284.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,646.20 : 131,365.48 = 40,221.31 : x
  2. Step 2: Convert to fraction form
    87,646.20/131,365.48 = 40,221.31/x
  3. Step 3: Cross multiply
    87,646.20x = 131,365.48 × 40,221.31
  4. Step 4: Simplify right side
    87,646.20x = 5,283,691,694.38
  5. Step 5: Solve for x
    x = 5,283,691,694.38/87,646.20
  6. Step 6: Final answer
    x = 60,284.32

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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.