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Finding the Third Proportional to 40,440 and 85,068

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Solution

The third proportional to 40,440 and 85,068 is: 178,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,440 : 85,068 = 85,068 : x
  2. Step 2: Convert to fraction form
    40,440/85,068 = 85,068/x
  3. Step 3: Cross multiply
    40,440x = 85,068 × 85,068
  4. Step 4: Simplify right side
    40,440x = 7,236,564,624
  5. Step 5: Solve for x
    x = 7,236,564,624/40,440
  6. Step 6: Final answer
    x = 178,945.71

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.