Home / 87,670.40-131,332.80-52,505.60

Finding the Fourth Proportional to 87,670.40, 131,332.80 and 52,505.60

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Solution

The fourth proportional to 87,670.40, 131,332.80 and 52,505.60 is: 78,654.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,670.40 : 131,332.80 = 52,505.60 : x
  2. Step 2: Convert to fraction form
    87,670.40/131,332.80 = 52,505.60/x
  3. Step 3: Cross multiply
    87,670.40x = 131,332.80 × 52,505.60
  4. Step 4: Simplify right side
    87,670.40x = 6,895,707,463.68
  5. Step 5: Solve for x
    x = 6,895,707,463.68/87,670.40
  6. Step 6: Final answer
    x = 78,654.91

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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.