Home / 82,660.04-123,990.08-38,262.52

Finding the Fourth Proportional to 82,660.04, 123,990.08 and 38,262.52

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Solution

The fourth proportional to 82,660.04, 123,990.08 and 38,262.52 is: 57,393.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,660.04 : 123,990.08 = 38,262.52 : x
  2. Step 2: Convert to fraction form
    82,660.04/123,990.08 = 38,262.52/x
  3. Step 3: Cross multiply
    82,660.04x = 123,990.08 × 38,262.52
  4. Step 4: Simplify right side
    82,660.04x = 4,744,172,915.80
  5. Step 5: Solve for x
    x = 4,744,172,915.80/82,660.04
  6. Step 6: Final answer
    x = 57,393.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.