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Finding the Fourth Proportional to 67,375.84, 101,064 and 20,628.52

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Solution

The fourth proportional to 67,375.84, 101,064 and 20,628.52 is: 30,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,375.84 : 101,064 = 20,628.52 : x
  2. Step 2: Convert to fraction form
    67,375.84/101,064 = 20,628.52/x
  3. Step 3: Cross multiply
    67,375.84x = 101,064 × 20,628.52
  4. Step 4: Simplify right side
    67,375.84x = 2,084,800,745.28
  5. Step 5: Solve for x
    x = 2,084,800,745.28/67,375.84
  6. Step 6: Final answer
    x = 30,942.85

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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.