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Finding the Third Proportional to 66,039.75 and 99,372.38

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Solution

The third proportional to 66,039.75 and 99,372.38 is: 149,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,039.75 : 99,372.38 = 99,372.38 : x
  2. Step 2: Convert to fraction form
    66,039.75/99,372.38 = 99,372.38/x
  3. Step 3: Cross multiply
    66,039.75x = 99,372.38 × 99,372.38
  4. Step 4: Simplify right side
    66,039.75x = 9,874,868,913.14
  5. Step 5: Solve for x
    x = 9,874,868,913.14/66,039.75
  6. Step 6: Final answer
    x = 149,529.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.