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Finding the Fourth Proportional to 73,349.70, 110,028.78 and 20,754.78

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Solution

The fourth proportional to 73,349.70, 110,028.78 and 20,754.78 is: 31,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,349.70 : 110,028.78 = 20,754.78 : x
  2. Step 2: Convert to fraction form
    73,349.70/110,028.78 = 20,754.78/x
  3. Step 3: Cross multiply
    73,349.70x = 110,028.78 × 20,754.78
  4. Step 4: Simplify right side
    73,349.70x = 2,283,623,122.57
  5. Step 5: Solve for x
    x = 2,283,623,122.57/73,349.70
  6. Step 6: Final answer
    x = 31,133.37

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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.