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Finding the Third Proportional to 62,208 and 81,648

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Solution

The third proportional to 62,208 and 81,648 is: 107,163

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,208 : 81,648 = 81,648 : x
  2. Step 2: Convert to fraction form
    62,208/81,648 = 81,648/x
  3. Step 3: Cross multiply
    62,208x = 81,648 × 81,648
  4. Step 4: Simplify right side
    62,208x = 6,666,395,904
  5. Step 5: Solve for x
    x = 6,666,395,904/62,208
  6. Step 6: Final answer
    x = 107,163

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.