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Finding the Third Proportional to 52,828 and 81,836

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Solution

The third proportional to 52,828 and 81,836 is: 126,772.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,828 : 81,836 = 81,836 : x
  2. Step 2: Convert to fraction form
    52,828/81,836 = 81,836/x
  3. Step 3: Cross multiply
    52,828x = 81,836 × 81,836
  4. Step 4: Simplify right side
    52,828x = 6,697,130,896
  5. Step 5: Solve for x
    x = 6,697,130,896/52,828
  6. Step 6: Final answer
    x = 126,772.37

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.