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Finding the Third Proportional to 61,821 and 132,387.75

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Solution

The third proportional to 61,821 and 132,387.75 is: 283,504.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,821 : 132,387.75 = 132,387.75 : x
  2. Step 2: Convert to fraction form
    61,821/132,387.75 = 132,387.75/x
  3. Step 3: Cross multiply
    61,821x = 132,387.75 × 132,387.75
  4. Step 4: Simplify right side
    61,821x = 17,526,516,350.06
  5. Step 5: Solve for x
    x = 17,526,516,350.06/61,821
  6. Step 6: Final answer
    x = 283,504.25

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.