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Finding the Third Proportional to 39,684 and 63,804

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Solution

The third proportional to 39,684 and 63,804 is: 102,584.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,684 : 63,804 = 63,804 : x
  2. Step 2: Convert to fraction form
    39,684/63,804 = 63,804/x
  3. Step 3: Cross multiply
    39,684x = 63,804 × 63,804
  4. Step 4: Simplify right side
    39,684x = 4,070,950,416
  5. Step 5: Solve for x
    x = 4,070,950,416/39,684
  6. Step 6: Final answer
    x = 102,584.18

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.