Home / 82,304.19-123,456.30-23,139.88

Finding the Fourth Proportional to 82,304.19, 123,456.30 and 23,139.88

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Solution

The fourth proportional to 82,304.19, 123,456.30 and 23,139.88 is: 34,709.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,304.19 : 123,456.30 = 23,139.88 : x
  2. Step 2: Convert to fraction form
    82,304.19/123,456.30 = 23,139.88/x
  3. Step 3: Cross multiply
    82,304.19x = 123,456.30 × 23,139.88
  4. Step 4: Simplify right side
    82,304.19x = 2,856,763,967.24
  5. Step 5: Solve for x
    x = 2,856,763,967.24/82,304.19
  6. Step 6: Final answer
    x = 34,709.82

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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.