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Finding the Fourth Proportional to 54,502, 81,708.87 and 17,042.78

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Solution

The fourth proportional to 54,502, 81,708.87 and 17,042.78 is: 25,550.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,502 : 81,708.87 = 17,042.78 : x
  2. Step 2: Convert to fraction form
    54,502/81,708.87 = 17,042.78/x
  3. Step 3: Cross multiply
    54,502x = 81,708.87 × 17,042.78
  4. Step 4: Simplify right side
    54,502x = 1,392,546,295.46
  5. Step 5: Solve for x
    x = 1,392,546,295.46/54,502
  6. Step 6: Final answer
    x = 25,550.37

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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.