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Finding the Fourth Proportional to 66,942.30, 100,343.38 and 22,553.70

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Solution

The fourth proportional to 66,942.30, 100,343.38 and 22,553.70 is: 33,806.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,942.30 : 100,343.38 = 22,553.70 : x
  2. Step 2: Convert to fraction form
    66,942.30/100,343.38 = 22,553.70/x
  3. Step 3: Cross multiply
    66,942.30x = 100,343.38 × 22,553.70
  4. Step 4: Simplify right side
    66,942.30x = 2,263,114,489.51
  5. Step 5: Solve for x
    x = 2,263,114,489.51/66,942.30
  6. Step 6: Final answer
    x = 33,806.94

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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.