Home / 73,132.38-109,702.66-20,537.76

Finding the Fourth Proportional to 73,132.38, 109,702.66 and 20,537.76

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Solution

The fourth proportional to 73,132.38, 109,702.66 and 20,537.76 is: 30,807.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,132.38 : 109,702.66 = 20,537.76 : x
  2. Step 2: Convert to fraction form
    73,132.38/109,702.66 = 20,537.76/x
  3. Step 3: Cross multiply
    73,132.38x = 109,702.66 × 20,537.76
  4. Step 4: Simplify right side
    73,132.38x = 2,253,046,902.44
  5. Step 5: Solve for x
    x = 2,253,046,902.44/73,132.38
  6. Step 6: Final answer
    x = 30,807.79

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1.5x scale

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.