Home / 87,869.20-131,474.52-52,199.92

Finding the Fourth Proportional to 87,869.20, 131,474.52 and 52,199.92

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Solution

The fourth proportional to 87,869.20, 131,474.52 and 52,199.92 is: 78,104.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,869.20 : 131,474.52 = 52,199.92 : x
  2. Step 2: Convert to fraction form
    87,869.20/131,474.52 = 52,199.92/x
  3. Step 3: Cross multiply
    87,869.20x = 131,474.52 × 52,199.92
  4. Step 4: Simplify right side
    87,869.20x = 6,862,959,426.04
  5. Step 5: Solve for x
    x = 6,862,959,426.04/87,869.20
  6. Step 6: Final answer
    x = 78,104.27

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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.