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Finding the Third Proportional to 55,325 and 87,965

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Solution

The third proportional to 55,325 and 87,965 is: 139,861.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,325 : 87,965 = 87,965 : x
  2. Step 2: Convert to fraction form
    55,325/87,965 = 87,965/x
  3. Step 3: Cross multiply
    55,325x = 87,965 × 87,965
  4. Step 4: Simplify right side
    55,325x = 7,737,841,225
  5. Step 5: Solve for x
    x = 7,737,841,225/55,325
  6. Step 6: Final answer
    x = 139,861.57

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.