Home / 99,336.38-137,084.20-54,624.38

Finding the Fourth Proportional to 99,336.38, 137,084.20 and 54,624.38

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Solution

The fourth proportional to 99,336.38, 137,084.20 and 54,624.38 is: 75,381.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,336.38 : 137,084.20 = 54,624.38 : x
  2. Step 2: Convert to fraction form
    99,336.38/137,084.20 = 54,624.38/x
  3. Step 3: Cross multiply
    99,336.38x = 137,084.20 × 54,624.38
  4. Step 4: Simplify right side
    99,336.38x = 7,488,138,610.81
  5. Step 5: Solve for x
    x = 7,488,138,610.81/99,336.38
  6. Step 6: Final answer
    x = 75,381.64

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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.