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Finding the Third Proportional to 40,717 and 64,628

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Solution

The third proportional to 40,717 and 64,628 is: 102,580.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,717 : 64,628 = 64,628 : x
  2. Step 2: Convert to fraction form
    40,717/64,628 = 64,628/x
  3. Step 3: Cross multiply
    40,717x = 64,628 × 64,628
  4. Step 4: Simplify right side
    40,717x = 4,176,778,384
  5. Step 5: Solve for x
    x = 4,176,778,384/40,717
  6. Step 6: Final answer
    x = 102,580.70

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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.