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Finding the Third Proportional to 66,963.38 and 90,944.81

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Solution

The third proportional to 66,963.38 and 90,944.81 is: 123,514.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,963.38 : 90,944.81 = 90,944.81 : x
  2. Step 2: Convert to fraction form
    66,963.38/90,944.81 = 90,944.81/x
  3. Step 3: Cross multiply
    66,963.38x = 90,944.81 × 90,944.81
  4. Step 4: Simplify right side
    66,963.38x = 8,270,958,920.66
  5. Step 5: Solve for x
    x = 8,270,958,920.66/66,963.38
  6. Step 6: Final answer
    x = 123,514.67

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.