Home / 87,766.80-131,663.87-28,588.70

Finding the Fourth Proportional to 87,766.80, 131,663.87 and 28,588.70

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Solution

The fourth proportional to 87,766.80, 131,663.87 and 28,588.70 is: 42,887.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,766.80 : 131,663.87 = 28,588.70 : x
  2. Step 2: Convert to fraction form
    87,766.80/131,663.87 = 28,588.70/x
  3. Step 3: Cross multiply
    87,766.80x = 131,663.87 × 28,588.70
  4. Step 4: Simplify right side
    87,766.80x = 3,764,098,079.01
  5. Step 5: Solve for x
    x = 3,764,098,079.01/87,766.80
  6. Step 6: Final answer
    x = 42,887.49

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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.