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Finding the Third Proportional to 39,796 and 53,856

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Solution

The third proportional to 39,796 and 53,856 is: 72,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,796 : 53,856 = 53,856 : x
  2. Step 2: Convert to fraction form
    39,796/53,856 = 53,856/x
  3. Step 3: Cross multiply
    39,796x = 53,856 × 53,856
  4. Step 4: Simplify right side
    39,796x = 2,900,468,736
  5. Step 5: Solve for x
    x = 2,900,468,736/39,796
  6. Step 6: Final answer
    x = 72,883.42

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.