Home / 99,982.30-137,974.01-54,659.24

Finding the Fourth Proportional to 99,982.30, 137,974.01 and 54,659.24

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Solution

The fourth proportional to 99,982.30, 137,974.01 and 54,659.24 is: 75,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,982.30 : 137,974.01 = 54,659.24 : x
  2. Step 2: Convert to fraction form
    99,982.30/137,974.01 = 54,659.24/x
  3. Step 3: Cross multiply
    99,982.30x = 137,974.01 × 54,659.24
  4. Step 4: Simplify right side
    99,982.30x = 7,541,554,526.35
  5. Step 5: Solve for x
    x = 7,541,554,526.35/99,982.30
  6. Step 6: Final answer
    x = 75,428.90

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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.