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Finding the Third Proportional to 30,635 and 65,965

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Solution

The third proportional to 30,635 and 65,965 is: 142,039.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,635 : 65,965 = 65,965 : x
  2. Step 2: Convert to fraction form
    30,635/65,965 = 65,965/x
  3. Step 3: Cross multiply
    30,635x = 65,965 × 65,965
  4. Step 4: Simplify right side
    30,635x = 4,351,381,225
  5. Step 5: Solve for x
    x = 4,351,381,225/30,635
  6. Step 6: Final answer
    x = 142,039.54

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.