Home / 82,489.32-123,753.18-27,081.96

Finding the Fourth Proportional to 82,489.32, 123,753.18 and 27,081.96

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Solution

The fourth proportional to 82,489.32, 123,753.18 and 27,081.96 is: 40,629.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,489.32 : 123,753.18 = 27,081.96 : x
  2. Step 2: Convert to fraction form
    82,489.32/123,753.18 = 27,081.96/x
  3. Step 3: Cross multiply
    82,489.32x = 123,753.18 × 27,081.96
  4. Step 4: Simplify right side
    82,489.32x = 3,351,478,670.63
  5. Step 5: Solve for x
    x = 3,351,478,670.63/82,489.32
  6. Step 6: Final answer
    x = 40,629.24

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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.