Home / 80,280.24-110,861.76-51,649.70

Finding the Fourth Proportional to 80,280.24, 110,861.76 and 51,649.70

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Solution

The fourth proportional to 80,280.24, 110,861.76 and 51,649.70 is: 71,324.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,280.24 : 110,861.76 = 51,649.70 : x
  2. Step 2: Convert to fraction form
    80,280.24/110,861.76 = 51,649.70/x
  3. Step 3: Cross multiply
    80,280.24x = 110,861.76 × 51,649.70
  4. Step 4: Simplify right side
    80,280.24x = 5,725,976,645.47
  5. Step 5: Solve for x
    x = 5,725,976,645.47/80,280.24
  6. Step 6: Final answer
    x = 71,324.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.