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Finding the Third Proportional to 54,020.25 and 81,775.50

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Solution

The third proportional to 54,020.25 and 81,775.50 is: 123,791.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,020.25 : 81,775.50 = 81,775.50 : x
  2. Step 2: Convert to fraction form
    54,020.25/81,775.50 = 81,775.50/x
  3. Step 3: Cross multiply
    54,020.25x = 81,775.50 × 81,775.50
  4. Step 4: Simplify right side
    54,020.25x = 6,687,232,400.25
  5. Step 5: Solve for x
    x = 6,687,232,400.25/54,020.25
  6. Step 6: Final answer
    x = 123,791.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.