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Finding the Third Proportional to 43,887 and 66,218

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Solution

The third proportional to 43,887 and 66,218 is: 99,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,887 : 66,218 = 66,218 : x
  2. Step 2: Convert to fraction form
    43,887/66,218 = 66,218/x
  3. Step 3: Cross multiply
    43,887x = 66,218 × 66,218
  4. Step 4: Simplify right side
    43,887x = 4,384,823,524
  5. Step 5: Solve for x
    x = 4,384,823,524/43,887
  6. Step 6: Final answer
    x = 99,911.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.