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Finding the Third Proportional to 43,102 and 66,470

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Solution

The third proportional to 43,102 and 66,470 is: 102,507.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,102 : 66,470 = 66,470 : x
  2. Step 2: Convert to fraction form
    43,102/66,470 = 66,470/x
  3. Step 3: Cross multiply
    43,102x = 66,470 × 66,470
  4. Step 4: Simplify right side
    43,102x = 4,418,260,900
  5. Step 5: Solve for x
    x = 4,418,260,900/43,102
  6. Step 6: Final answer
    x = 102,507.10

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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.