Home / 99,382.38-137,148.27-54,060.78

Finding the Fourth Proportional to 99,382.38, 137,148.27 and 54,060.78

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Solution

The fourth proportional to 99,382.38, 137,148.27 and 54,060.78 is: 74,604.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,382.38 : 137,148.27 = 54,060.78 : x
  2. Step 2: Convert to fraction form
    99,382.38/137,148.27 = 54,060.78/x
  3. Step 3: Cross multiply
    99,382.38x = 137,148.27 × 54,060.78
  4. Step 4: Simplify right side
    99,382.38x = 7,414,342,451.85
  5. Step 5: Solve for x
    x = 7,414,342,451.85/99,382.38
  6. Step 6: Final answer
    x = 74,604.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.