Home / 99,627.39-137,481.67-54,304.38

Finding the Fourth Proportional to 99,627.39, 137,481.67 and 54,304.38

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Solution

The fourth proportional to 99,627.39, 137,481.67 and 54,304.38 is: 74,937.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,627.39 : 137,481.67 = 54,304.38 : x
  2. Step 2: Convert to fraction form
    99,627.39/137,481.67 = 54,304.38/x
  3. Step 3: Cross multiply
    99,627.39x = 137,481.67 × 54,304.38
  4. Step 4: Simplify right side
    99,627.39x = 7,465,856,850.71
  5. Step 5: Solve for x
    x = 7,465,856,850.71/99,627.39
  6. Step 6: Final answer
    x = 74,937.79

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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.