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Finding the Third Proportional to 67,959 and 81,283.50

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Solution

The third proportional to 67,959 and 81,283.50 is: 97,220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,959 : 81,283.50 = 81,283.50 : x
  2. Step 2: Convert to fraction form
    67,959/81,283.50 = 81,283.50/x
  3. Step 3: Cross multiply
    67,959x = 81,283.50 × 81,283.50
  4. Step 4: Simplify right side
    67,959x = 6,607,007,372.25
  5. Step 5: Solve for x
    x = 6,607,007,372.25/67,959
  6. Step 6: Final answer
    x = 97,220.49

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Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.