Home / 87,714.20-131,506.50-72,862.04

Finding the Fourth Proportional to 87,714.20, 131,506.50 and 72,862.04

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Solution

The fourth proportional to 87,714.20, 131,506.50 and 72,862.04 is: 109,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,714.20 : 131,506.50 = 72,862.04 : x
  2. Step 2: Convert to fraction form
    87,714.20/131,506.50 = 72,862.04/x
  3. Step 3: Cross multiply
    87,714.20x = 131,506.50 × 72,862.04
  4. Step 4: Simplify right side
    87,714.20x = 9,581,831,863.26
  5. Step 5: Solve for x
    x = 9,581,831,863.26/87,714.20
  6. Step 6: Final answer
    x = 109,239.23

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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.