Home / 80,910.83-121,367.26-30,993.94

Finding the Fourth Proportional to 80,910.83, 121,367.26 and 30,993.94

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Solution

The fourth proportional to 80,910.83, 121,367.26 and 30,993.94 is: 46,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,910.83 : 121,367.26 = 30,993.94 : x
  2. Step 2: Convert to fraction form
    80,910.83/121,367.26 = 30,993.94/x
  3. Step 3: Cross multiply
    80,910.83x = 121,367.26 × 30,993.94
  4. Step 4: Simplify right side
    80,910.83x = 3,761,649,764.86
  5. Step 5: Solve for x
    x = 3,761,649,764.86/80,910.83
  6. Step 6: Final answer
    x = 46,491.30

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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.