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Finding the Third Proportional to 12,072 and 29,078

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Solution

The third proportional to 12,072 and 29,078 is: 70,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072 : 29,078 = 29,078 : x
  2. Step 2: Convert to fraction form
    12,072/29,078 = 29,078/x
  3. Step 3: Cross multiply
    12,072x = 29,078 × 29,078
  4. Step 4: Simplify right side
    12,072x = 845,530,084
  5. Step 5: Solve for x
    x = 845,530,084/12,072
  6. Step 6: Final answer
    x = 70,040.60

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.