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Finding the Third Proportional to 30,963.38 and 66,299.63

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Solution

The third proportional to 30,963.38 and 66,299.63 is: 141,962.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,963.38 : 66,299.63 = 66,299.63 : x
  2. Step 2: Convert to fraction form
    30,963.38/66,299.63 = 66,299.63/x
  3. Step 3: Cross multiply
    30,963.38x = 66,299.63 × 66,299.63
  4. Step 4: Simplify right side
    30,963.38x = 4,395,640,275.14
  5. Step 5: Solve for x
    x = 4,395,640,275.14/30,963.38
  6. Step 6: Final answer
    x = 141,962.57

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.