Home / 40,121.28-60,149.52-16,765.20

Finding the Fourth Proportional to 40,121.28, 60,149.52 and 16,765.20

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Solution

The fourth proportional to 40,121.28, 60,149.52 and 16,765.20 is: 25,134.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.28 : 60,149.52 = 16,765.20 : x
  2. Step 2: Convert to fraction form
    40,121.28/60,149.52 = 16,765.20/x
  3. Step 3: Cross multiply
    40,121.28x = 60,149.52 × 16,765.20
  4. Step 4: Simplify right side
    40,121.28x = 1,008,418,732.70
  5. Step 5: Solve for x
    x = 1,008,418,732.70/40,121.28
  6. Step 6: Final answer
    x = 25,134.26

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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.