Home / 99,591.12-137,434.04-54,269.49

Finding the Fourth Proportional to 99,591.12, 137,434.04 and 54,269.49

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Solution

The fourth proportional to 99,591.12, 137,434.04 and 54,269.49 is: 74,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,591.12 : 137,434.04 = 54,269.49 : x
  2. Step 2: Convert to fraction form
    99,591.12/137,434.04 = 54,269.49/x
  3. Step 3: Cross multiply
    99,591.12x = 137,434.04 × 54,269.49
  4. Step 4: Simplify right side
    99,591.12x = 7,458,475,859.61
  5. Step 5: Solve for x
    x = 7,458,475,859.61/99,591.12
  6. Step 6: Final answer
    x = 74,890.97

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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.