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Finding the Fourth Proportional to 54,488, 81,751.68 and 26,805.44

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Solution

The fourth proportional to 54,488, 81,751.68 and 26,805.44 is: 40,217.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,488 : 81,751.68 = 26,805.44 : x
  2. Step 2: Convert to fraction form
    54,488/81,751.68 = 26,805.44/x
  3. Step 3: Cross multiply
    54,488x = 81,751.68 × 26,805.44
  4. Step 4: Simplify right side
    54,488x = 2,191,389,753.14
  5. Step 5: Solve for x
    x = 2,191,389,753.14/54,488
  6. Step 6: Final answer
    x = 40,217.84

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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.