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Finding the Third Proportional to 43,470 and 66,115.50

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Solution

The third proportional to 43,470 and 66,115.50 is: 100,558.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,470 : 66,115.50 = 66,115.50 : x
  2. Step 2: Convert to fraction form
    43,470/66,115.50 = 66,115.50/x
  3. Step 3: Cross multiply
    43,470x = 66,115.50 × 66,115.50
  4. Step 4: Simplify right side
    43,470x = 4,371,259,340.25
  5. Step 5: Solve for x
    x = 4,371,259,340.25/43,470
  6. Step 6: Final answer
    x = 100,558.07

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.