Home / 87,754.28-131,325.18-71,774.60

Finding the Fourth Proportional to 87,754.28, 131,325.18 and 71,774.60

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Solution

The fourth proportional to 87,754.28, 131,325.18 and 71,774.60 is: 107,411.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,754.28 : 131,325.18 = 71,774.60 : x
  2. Step 2: Convert to fraction form
    87,754.28/131,325.18 = 71,774.60/x
  3. Step 3: Cross multiply
    87,754.28x = 131,325.18 × 71,774.60
  4. Step 4: Simplify right side
    87,754.28x = 9,425,812,264.43
  5. Step 5: Solve for x
    x = 9,425,812,264.43/87,754.28
  6. Step 6: Final answer
    x = 107,411.42

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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.