Home / 54,740.91-82,111.38-13,187.91

Finding the Fourth Proportional to 54,740.91, 82,111.38 and 13,187.91

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Solution

The fourth proportional to 54,740.91, 82,111.38 and 13,187.91 is: 19,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,740.91 : 82,111.38 = 13,187.91 : x
  2. Step 2: Convert to fraction form
    54,740.91/82,111.38 = 13,187.91/x
  3. Step 3: Cross multiply
    54,740.91x = 82,111.38 × 13,187.91
  4. Step 4: Simplify right side
    54,740.91x = 1,082,877,489.42
  5. Step 5: Solve for x
    x = 1,082,877,489.42/54,740.91
  6. Step 6: Final answer
    x = 19,781.87

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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.