Home / 54,436.73-75,128.72-31,781.29

Finding the Fourth Proportional to 54,436.73, 75,128.72 and 31,781.29

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Solution

The fourth proportional to 54,436.73, 75,128.72 and 31,781.29 is: 43,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,436.73 : 75,128.72 = 31,781.29 : x
  2. Step 2: Convert to fraction form
    54,436.73/75,128.72 = 31,781.29/x
  3. Step 3: Cross multiply
    54,436.73x = 75,128.72 × 31,781.29
  4. Step 4: Simplify right side
    54,436.73x = 2,387,687,637.65
  5. Step 5: Solve for x
    x = 2,387,687,637.65/54,436.73
  6. Step 6: Final answer
    x = 43,861.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.