Home / 75,489.18-113,233.77-28,716.54

Finding the Fourth Proportional to 75,489.18, 113,233.77 and 28,716.54

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Solution

The fourth proportional to 75,489.18, 113,233.77 and 28,716.54 is: 43,074.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,489.18 : 113,233.77 = 28,716.54 : x
  2. Step 2: Convert to fraction form
    75,489.18/113,233.77 = 28,716.54/x
  3. Step 3: Cross multiply
    75,489.18x = 113,233.77 × 28,716.54
  4. Step 4: Simplify right side
    75,489.18x = 3,251,682,085.56
  5. Step 5: Solve for x
    x = 3,251,682,085.56/75,489.18
  6. Step 6: Final answer
    x = 43,074.81

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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.