Home / 91,531.20-137,324.52-38,249.04

Finding the Fourth Proportional to 91,531.20, 137,324.52 and 38,249.04

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Solution

The fourth proportional to 91,531.20, 137,324.52 and 38,249.04 is: 57,385.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,531.20 : 137,324.52 = 38,249.04 : x
  2. Step 2: Convert to fraction form
    91,531.20/137,324.52 = 38,249.04/x
  3. Step 3: Cross multiply
    91,531.20x = 137,324.52 × 38,249.04
  4. Step 4: Simplify right side
    91,531.20x = 5,252,531,058.46
  5. Step 5: Solve for x
    x = 5,252,531,058.46/91,531.20
  6. Step 6: Final answer
    x = 57,385.14

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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.