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Finding the Third Proportional to 62,628 and 91,638

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Solution

The third proportional to 62,628 and 91,638 is: 134,085.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,628 : 91,638 = 91,638 : x
  2. Step 2: Convert to fraction form
    62,628/91,638 = 91,638/x
  3. Step 3: Cross multiply
    62,628x = 91,638 × 91,638
  4. Step 4: Simplify right side
    62,628x = 8,397,523,044
  5. Step 5: Solve for x
    x = 8,397,523,044/62,628
  6. Step 6: Final answer
    x = 134,085.76

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.