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Finding the Third Proportional to 43,712 and 67,200

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Solution

The third proportional to 43,712 and 67,200 is: 103,308.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,712 : 67,200 = 67,200 : x
  2. Step 2: Convert to fraction form
    43,712/67,200 = 67,200/x
  3. Step 3: Cross multiply
    43,712x = 67,200 × 67,200
  4. Step 4: Simplify right side
    43,712x = 4,515,840,000
  5. Step 5: Solve for x
    x = 4,515,840,000/43,712
  6. Step 6: Final answer
    x = 103,308.93

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.