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Finding the Fourth Proportional to 87,989.91, 131,990.01 and 33,954.87

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Solution

The fourth proportional to 87,989.91, 131,990.01 and 33,954.87 is: 50,934.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,989.91 : 131,990.01 = 33,954.87 : x
  2. Step 2: Convert to fraction form
    87,989.91/131,990.01 = 33,954.87/x
  3. Step 3: Cross multiply
    87,989.91x = 131,990.01 × 33,954.87
  4. Step 4: Simplify right side
    87,989.91x = 4,481,703,630.85
  5. Step 5: Solve for x
    x = 4,481,703,630.85/87,989.91
  6. Step 6: Final answer
    x = 50,934.29

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Similar ratio
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1.5x scale

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.