Home / 75,134.75-103,689.20-41,600.75

Finding the Fourth Proportional to 75,134.75, 103,689.20 and 41,600.75

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Solution

The fourth proportional to 75,134.75, 103,689.20 and 41,600.75 is: 57,410.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,134.75 : 103,689.20 = 41,600.75 : x
  2. Step 2: Convert to fraction form
    75,134.75/103,689.20 = 41,600.75/x
  3. Step 3: Cross multiply
    75,134.75x = 103,689.20 × 41,600.75
  4. Step 4: Simplify right side
    75,134.75x = 4,313,548,486.90
  5. Step 5: Solve for x
    x = 4,313,548,486.90/75,134.75
  6. Step 6: Final answer
    x = 57,410.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.