Home / 82,137.56-123,218.49-25,964.92

Finding the Fourth Proportional to 82,137.56, 123,218.49 and 25,964.92

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Solution

The fourth proportional to 82,137.56, 123,218.49 and 25,964.92 is: 38,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,137.56 : 123,218.49 = 25,964.92 : x
  2. Step 2: Convert to fraction form
    82,137.56/123,218.49 = 25,964.92/x
  3. Step 3: Cross multiply
    82,137.56x = 123,218.49 × 25,964.92
  4. Step 4: Simplify right side
    82,137.56x = 3,199,357,619.28
  5. Step 5: Solve for x
    x = 3,199,357,619.28/82,137.56
  6. Step 6: Final answer
    x = 38,951.21

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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.