Home / 54,540.09-81,789.89-18,992.29

Finding the Fourth Proportional to 54,540.09, 81,789.89 and 18,992.29

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Solution

The fourth proportional to 54,540.09, 81,789.89 and 18,992.29 is: 28,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,540.09 : 81,789.89 = 18,992.29 : x
  2. Step 2: Convert to fraction form
    54,540.09/81,789.89 = 18,992.29/x
  3. Step 3: Cross multiply
    54,540.09x = 81,789.89 × 18,992.29
  4. Step 4: Simplify right side
    54,540.09x = 1,553,377,081.73
  5. Step 5: Solve for x
    x = 1,553,377,081.73/54,540.09
  6. Step 6: Final answer
    x = 28,481.38

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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.