Home / 99,839.27-137,778.87-54,517.58

Finding the Fourth Proportional to 99,839.27, 137,778.87 and 54,517.58

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Solution

The fourth proportional to 99,839.27, 137,778.87 and 54,517.58 is: 75,234.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,839.27 : 137,778.87 = 54,517.58 : x
  2. Step 2: Convert to fraction form
    99,839.27/137,778.87 = 54,517.58/x
  3. Step 3: Cross multiply
    99,839.27x = 137,778.87 × 54,517.58
  4. Step 4: Simplify right side
    99,839.27x = 7,511,370,567.53
  5. Step 5: Solve for x
    x = 7,511,370,567.53/99,839.27
  6. Step 6: Final answer
    x = 75,234.63

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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.