Home / 82,120.20-123,184.70-25,956.04

Finding the Fourth Proportional to 82,120.20, 123,184.70 and 25,956.04

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Solution

The fourth proportional to 82,120.20, 123,184.70 and 25,956.04 is: 38,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,120.20 : 123,184.70 = 25,956.04 : x
  2. Step 2: Convert to fraction form
    82,120.20/123,184.70 = 25,956.04/x
  3. Step 3: Cross multiply
    82,120.20x = 123,184.70 × 25,956.04
  4. Step 4: Simplify right side
    82,120.20x = 3,197,387,000.59
  5. Step 5: Solve for x
    x = 3,197,387,000.59/82,120.20
  6. Step 6: Final answer
    x = 38,935.45

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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.