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Finding the Third Proportional to 27,963 and 42,918

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Solution

The third proportional to 27,963 and 42,918 is: 65,871.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,963 : 42,918 = 42,918 : x
  2. Step 2: Convert to fraction form
    27,963/42,918 = 42,918/x
  3. Step 3: Cross multiply
    27,963x = 42,918 × 42,918
  4. Step 4: Simplify right side
    27,963x = 1,841,954,724
  5. Step 5: Solve for x
    x = 1,841,954,724/27,963
  6. Step 6: Final answer
    x = 65,871.14

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.