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Finding the Third Proportional to 31,974.75 and 70,179.75

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Solution

The third proportional to 31,974.75 and 70,179.75 is: 154,033.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,974.75 : 70,179.75 = 70,179.75 : x
  2. Step 2: Convert to fraction form
    31,974.75/70,179.75 = 70,179.75/x
  3. Step 3: Cross multiply
    31,974.75x = 70,179.75 × 70,179.75
  4. Step 4: Simplify right side
    31,974.75x = 4,925,197,310.06
  5. Step 5: Solve for x
    x = 4,925,197,310.06/31,974.75
  6. Step 6: Final answer
    x = 154,033.96

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.