Home / 99,912.20-137,882.04-54,594.48

Finding the Fourth Proportional to 99,912.20, 137,882.04 and 54,594.48

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Solution

The fourth proportional to 99,912.20, 137,882.04 and 54,594.48 is: 75,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,912.20 : 137,882.04 = 54,594.48 : x
  2. Step 2: Convert to fraction form
    99,912.20/137,882.04 = 54,594.48/x
  3. Step 3: Cross multiply
    99,912.20x = 137,882.04 × 54,594.48
  4. Step 4: Simplify right side
    99,912.20x = 7,527,598,275.14
  5. Step 5: Solve for x
    x = 7,527,598,275.14/99,912.20
  6. Step 6: Final answer
    x = 75,342.13

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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.