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Finding the Third Proportional to 43,759 and 66,038

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Solution

The third proportional to 43,759 and 66,038 is: 99,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,759 : 66,038 = 66,038 : x
  2. Step 2: Convert to fraction form
    43,759/66,038 = 66,038/x
  3. Step 3: Cross multiply
    43,759x = 66,038 × 66,038
  4. Step 4: Simplify right side
    43,759x = 4,361,017,444
  5. Step 5: Solve for x
    x = 4,361,017,444/43,759
  6. Step 6: Final answer
    x = 99,659.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.