Home / 80,866.37-121,355.84-33,481.71

Finding the Fourth Proportional to 80,866.37, 121,355.84 and 33,481.71

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Solution

The fourth proportional to 80,866.37, 121,355.84 and 33,481.71 is: 50,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,866.37 : 121,355.84 = 33,481.71 : x
  2. Step 2: Convert to fraction form
    80,866.37/121,355.84 = 33,481.71/x
  3. Step 3: Cross multiply
    80,866.37x = 121,355.84 × 33,481.71
  4. Step 4: Simplify right side
    80,866.37x = 4,063,201,125.39
  5. Step 5: Solve for x
    x = 4,063,201,125.39/80,866.37
  6. Step 6: Final answer
    x = 50,245.87

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1.5x scale

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.