Home / 54,456.12-81,545.94-43,489.08

Finding the Fourth Proportional to 54,456.12, 81,545.94 and 43,489.08

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Solution

The fourth proportional to 54,456.12, 81,545.94 and 43,489.08 is: 65,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,456.12 : 81,545.94 = 43,489.08 : x
  2. Step 2: Convert to fraction form
    54,456.12/81,545.94 = 43,489.08/x
  3. Step 3: Cross multiply
    54,456.12x = 81,545.94 × 43,489.08
  4. Step 4: Simplify right side
    54,456.12x = 3,546,357,908.34
  5. Step 5: Solve for x
    x = 3,546,357,908.34/54,456.12
  6. Step 6: Final answer
    x = 65,123.22

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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.