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Finding the Fourth Proportional to 54,690, 82,042.92 and 17,237.40

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Solution

The fourth proportional to 54,690, 82,042.92 and 17,237.40 is: 25,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,690 : 82,042.92 = 17,237.40 : x
  2. Step 2: Convert to fraction form
    54,690/82,042.92 = 17,237.40/x
  3. Step 3: Cross multiply
    54,690x = 82,042.92 × 17,237.40
  4. Step 4: Simplify right side
    54,690x = 1,414,206,629.21
  5. Step 5: Solve for x
    x = 1,414,206,629.21/54,690
  6. Step 6: Final answer
    x = 25,858.60

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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.