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Finding the Third Proportional to 54,321.56 and 117,687.56

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Solution

The third proportional to 54,321.56 and 117,687.56 is: 254,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,321.56 : 117,687.56 = 117,687.56 : x
  2. Step 2: Convert to fraction form
    54,321.56/117,687.56 = 117,687.56/x
  3. Step 3: Cross multiply
    54,321.56x = 117,687.56 × 117,687.56
  4. Step 4: Simplify right side
    54,321.56x = 13,850,362,367.19
  5. Step 5: Solve for x
    x = 13,850,362,367.19/54,321.56
  6. Step 6: Final answer
    x = 254,969.88

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.