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Finding the Third Proportional to 66,974.63 and 90,957.38

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Solution

The third proportional to 66,974.63 and 90,957.38 is: 123,528.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,974.63 : 90,957.38 = 90,957.38 : x
  2. Step 2: Convert to fraction form
    66,974.63/90,957.38 = 90,957.38/x
  3. Step 3: Cross multiply
    66,974.63x = 90,957.38 × 90,957.38
  4. Step 4: Simplify right side
    66,974.63x = 8,273,244,066.89
  5. Step 5: Solve for x
    x = 8,273,244,066.89/66,974.63
  6. Step 6: Final answer
    x = 123,528.04

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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.