Home / 87,722.30-131,497.05-43,355.90

Finding the Fourth Proportional to 87,722.30, 131,497.05 and 43,355.90

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Solution

The fourth proportional to 87,722.30, 131,497.05 and 43,355.90 is: 64,991.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,722.30 : 131,497.05 = 43,355.90 : x
  2. Step 2: Convert to fraction form
    87,722.30/131,497.05 = 43,355.90/x
  3. Step 3: Cross multiply
    87,722.30x = 131,497.05 × 43,355.90
  4. Step 4: Simplify right side
    87,722.30x = 5,701,172,950.10
  5. Step 5: Solve for x
    x = 5,701,172,950.10/87,722.30
  6. Step 6: Final answer
    x = 64,991.15

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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.