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Finding the Third Proportional to 35,306 and 77,719

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Solution

The third proportional to 35,306 and 77,719 is: 171,082.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,306 : 77,719 = 77,719 : x
  2. Step 2: Convert to fraction form
    35,306/77,719 = 77,719/x
  3. Step 3: Cross multiply
    35,306x = 77,719 × 77,719
  4. Step 4: Simplify right side
    35,306x = 6,040,242,961
  5. Step 5: Solve for x
    x = 6,040,242,961/35,306
  6. Step 6: Final answer
    x = 171,082.62

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.