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Finding the Third Proportional to 31,059 and 67,035.75

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Solution

The third proportional to 31,059 and 67,035.75 is: 144,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,059 : 67,035.75 = 67,035.75 : x
  2. Step 2: Convert to fraction form
    31,059/67,035.75 = 67,035.75/x
  3. Step 3: Cross multiply
    31,059x = 67,035.75 × 67,035.75
  4. Step 4: Simplify right side
    31,059x = 4,493,791,778.06
  5. Step 5: Solve for x
    x = 4,493,791,778.06/31,059
  6. Step 6: Final answer
    x = 144,685.66

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.