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Finding the Third Proportional to 26,128 and 39,739

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Solution

The third proportional to 26,128 and 39,739 is: 60,440.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,128 : 39,739 = 39,739 : x
  2. Step 2: Convert to fraction form
    26,128/39,739 = 39,739/x
  3. Step 3: Cross multiply
    26,128x = 39,739 × 39,739
  4. Step 4: Simplify right side
    26,128x = 1,579,188,121
  5. Step 5: Solve for x
    x = 1,579,188,121/26,128
  6. Step 6: Final answer
    x = 60,440.45

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.