Home / 54,383.60-81,605.12-21,104.96

Finding the Fourth Proportional to 54,383.60, 81,605.12 and 21,104.96

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Solution

The fourth proportional to 54,383.60, 81,605.12 and 21,104.96 is: 31,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,383.60 : 81,605.12 = 21,104.96 : x
  2. Step 2: Convert to fraction form
    54,383.60/81,605.12 = 21,104.96/x
  3. Step 3: Cross multiply
    54,383.60x = 81,605.12 × 21,104.96
  4. Step 4: Simplify right side
    54,383.60x = 1,722,272,793.40
  5. Step 5: Solve for x
    x = 1,722,272,793.40/54,383.60
  6. Step 6: Final answer
    x = 31,668.97

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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.