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Finding the Third Proportional to 34,711 and 74,821

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Solution

The third proportional to 34,711 and 74,821 is: 161,279.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,711 : 74,821 = 74,821 : x
  2. Step 2: Convert to fraction form
    34,711/74,821 = 74,821/x
  3. Step 3: Cross multiply
    34,711x = 74,821 × 74,821
  4. Step 4: Simplify right side
    34,711x = 5,598,182,041
  5. Step 5: Solve for x
    x = 5,598,182,041/34,711
  6. Step 6: Final answer
    x = 161,279.77

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.