Home / 67,042.18-100,600.20-40,765.37

Finding the Fourth Proportional to 67,042.18, 100,600.20 and 40,765.37

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Solution

The fourth proportional to 67,042.18, 100,600.20 and 40,765.37 is: 61,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,042.18 : 100,600.20 = 40,765.37 : x
  2. Step 2: Convert to fraction form
    67,042.18/100,600.20 = 40,765.37/x
  3. Step 3: Cross multiply
    67,042.18x = 100,600.20 × 40,765.37
  4. Step 4: Simplify right side
    67,042.18x = 4,101,004,375.07
  5. Step 5: Solve for x
    x = 4,101,004,375.07/67,042.18
  6. Step 6: Final answer
    x = 61,170.51

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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.