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Finding the Third Proportional to 27,839 and 43,088

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Solution

The third proportional to 27,839 and 43,088 is: 66,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,839 : 43,088 = 43,088 : x
  2. Step 2: Convert to fraction form
    27,839/43,088 = 43,088/x
  3. Step 3: Cross multiply
    27,839x = 43,088 × 43,088
  4. Step 4: Simplify right side
    27,839x = 1,856,575,744
  5. Step 5: Solve for x
    x = 1,856,575,744/27,839
  6. Step 6: Final answer
    x = 66,689.74

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.