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Finding the Third Proportional to 68,772 and 92,790

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Solution

The third proportional to 68,772 and 92,790 is: 125,196.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,772 : 92,790 = 92,790 : x
  2. Step 2: Convert to fraction form
    68,772/92,790 = 92,790/x
  3. Step 3: Cross multiply
    68,772x = 92,790 × 92,790
  4. Step 4: Simplify right side
    68,772x = 8,609,984,100
  5. Step 5: Solve for x
    x = 8,609,984,100/68,772
  6. Step 6: Final answer
    x = 125,196.07

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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.