Home / 82,381.08-123,581.22-29,815.32

Finding the Fourth Proportional to 82,381.08, 123,581.22 and 29,815.32

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Solution

The fourth proportional to 82,381.08, 123,581.22 and 29,815.32 is: 44,726.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,381.08 : 123,581.22 = 29,815.32 : x
  2. Step 2: Convert to fraction form
    82,381.08/123,581.22 = 29,815.32/x
  3. Step 3: Cross multiply
    82,381.08x = 123,581.22 × 29,815.32
  4. Step 4: Simplify right side
    82,381.08x = 3,684,613,620.29
  5. Step 5: Solve for x
    x = 3,684,613,620.29/82,381.08
  6. Step 6: Final answer
    x = 44,726.45

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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.