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Finding the Third Proportional to 40,768 and 64,863

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Solution

The third proportional to 40,768 and 64,863 is: 103,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,768 : 64,863 = 64,863 : x
  2. Step 2: Convert to fraction form
    40,768/64,863 = 64,863/x
  3. Step 3: Cross multiply
    40,768x = 64,863 × 64,863
  4. Step 4: Simplify right side
    40,768x = 4,207,208,769
  5. Step 5: Solve for x
    x = 4,207,208,769/40,768
  6. Step 6: Final answer
    x = 103,198.80

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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.