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Finding the Third Proportional to 61,958.67 and 129,259.55

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Solution

The third proportional to 61,958.67 and 129,259.55 is: 269,664.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,958.67 : 129,259.55 = 129,259.55 : x
  2. Step 2: Convert to fraction form
    61,958.67/129,259.55 = 129,259.55/x
  3. Step 3: Cross multiply
    61,958.67x = 129,259.55 × 129,259.55
  4. Step 4: Simplify right side
    61,958.67x = 16,708,030,458.33
  5. Step 5: Solve for x
    x = 16,708,030,458.33/61,958.67
  6. Step 6: Final answer
    x = 269,664.12

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.