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Finding the Fourth Proportional to 99,882.68, 137,832.81 and 54,560.00

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Solution

The fourth proportional to 99,882.68, 137,832.81 and 54,560.00 is: 75,289.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,882.68 : 137,832.81 = 54,560.00 : x
  2. Step 2: Convert to fraction form
    99,882.68/137,832.81 = 54,560.00/x
  3. Step 3: Cross multiply
    99,882.68x = 137,832.81 × 54,560.00
  4. Step 4: Simplify right side
    99,882.68x = 7,520,157,424.44
  5. Step 5: Solve for x
    x = 7,520,157,424.44/99,882.68
  6. Step 6: Final answer
    x = 75,289.91

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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.