Home / 75,769.82-113,630.10-35,782.61

Finding the Fourth Proportional to 75,769.82, 113,630.10 and 35,782.61

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Solution

The fourth proportional to 75,769.82, 113,630.10 and 35,782.61 is: 53,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,769.82 : 113,630.10 = 35,782.61 : x
  2. Step 2: Convert to fraction form
    75,769.82/113,630.10 = 35,782.61/x
  3. Step 3: Cross multiply
    75,769.82x = 113,630.10 × 35,782.61
  4. Step 4: Simplify right side
    75,769.82x = 4,065,981,552.56
  5. Step 5: Solve for x
    x = 4,065,981,552.56/75,769.82
  6. Step 6: Final answer
    x = 53,662.28

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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.