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Finding the Third Proportional to 40,608 and 61,020

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Solution

The third proportional to 40,608 and 61,020 is: 91,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,608 : 61,020 = 61,020 : x
  2. Step 2: Convert to fraction form
    40,608/61,020 = 61,020/x
  3. Step 3: Cross multiply
    40,608x = 61,020 × 61,020
  4. Step 4: Simplify right side
    40,608x = 3,723,440,400
  5. Step 5: Solve for x
    x = 3,723,440,400/40,608
  6. Step 6: Final answer
    x = 91,692.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.