Home / 54,147.48-81,234.51-18,609.31

Finding the Fourth Proportional to 54,147.48, 81,234.51 and 18,609.31

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Solution

The fourth proportional to 54,147.48, 81,234.51 and 18,609.31 is: 27,918.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,147.48 : 81,234.51 = 18,609.31 : x
  2. Step 2: Convert to fraction form
    54,147.48/81,234.51 = 18,609.31/x
  3. Step 3: Cross multiply
    54,147.48x = 81,234.51 × 18,609.31
  4. Step 4: Simplify right side
    54,147.48x = 1,511,718,179.29
  5. Step 5: Solve for x
    x = 1,511,718,179.29/54,147.48
  6. Step 6: Final answer
    x = 27,918.53

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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.