Home / 75,768.82-113,628.60-35,781.61

Finding the Fourth Proportional to 75,768.82, 113,628.60 and 35,781.61

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Solution

The fourth proportional to 75,768.82, 113,628.60 and 35,781.61 is: 53,660.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,768.82 : 113,628.60 = 35,781.61 : x
  2. Step 2: Convert to fraction form
    75,768.82/113,628.60 = 35,781.61/x
  3. Step 3: Cross multiply
    75,768.82x = 113,628.60 × 35,781.61
  4. Step 4: Simplify right side
    75,768.82x = 4,065,814,250.05
  5. Step 5: Solve for x
    x = 4,065,814,250.05/75,768.82
  6. Step 6: Final answer
    x = 53,660.78

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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.