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Finding the Fourth Proportional to 99,449.64, 137,240.52 and 54,737.64

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Solution

The fourth proportional to 99,449.64, 137,240.52 and 54,737.64 is: 75,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,449.64 : 137,240.52 = 54,737.64 : x
  2. Step 2: Convert to fraction form
    99,449.64/137,240.52 = 54,737.64/x
  3. Step 3: Cross multiply
    99,449.64x = 137,240.52 × 54,737.64
  4. Step 4: Simplify right side
    99,449.64x = 7,512,222,177.17
  5. Step 5: Solve for x
    x = 7,512,222,177.17/99,449.64
  6. Step 6: Final answer
    x = 75,537.95

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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.