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Finding the Third Proportional to 54,489 and 117,579.75

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Solution

The third proportional to 54,489 and 117,579.75 is: 253,720.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,489 : 117,579.75 = 117,579.75 : x
  2. Step 2: Convert to fraction form
    54,489/117,579.75 = 117,579.75/x
  3. Step 3: Cross multiply
    54,489x = 117,579.75 × 117,579.75
  4. Step 4: Simplify right side
    54,489x = 13,824,997,610.06
  5. Step 5: Solve for x
    x = 13,824,997,610.06/54,489
  6. Step 6: Final answer
    x = 253,720.89

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.