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Finding the Third Proportional to 54,652.50 and 81,978.75

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Solution

The third proportional to 54,652.50 and 81,978.75 is: 122,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,652.50 : 81,978.75 = 81,978.75 : x
  2. Step 2: Convert to fraction form
    54,652.50/81,978.75 = 81,978.75/x
  3. Step 3: Cross multiply
    54,652.50x = 81,978.75 × 81,978.75
  4. Step 4: Simplify right side
    54,652.50x = 6,720,515,451.56
  5. Step 5: Solve for x
    x = 6,720,515,451.56/54,652.50
  6. Step 6: Final answer
    x = 122,968.13

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Similar ratio
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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.