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Finding the Fourth Proportional to 80,600.48, 111,198.66 and 49,959.74

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Solution

The fourth proportional to 80,600.48, 111,198.66 and 49,959.74 is: 68,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,600.48 : 111,198.66 = 49,959.74 : x
  2. Step 2: Convert to fraction form
    80,600.48/111,198.66 = 49,959.74/x
  3. Step 3: Cross multiply
    80,600.48x = 111,198.66 × 49,959.74
  4. Step 4: Simplify right side
    80,600.48x = 5,555,456,141.95
  5. Step 5: Solve for x
    x = 5,555,456,141.95/80,600.48
  6. Step 6: Final answer
    x = 68,925.84

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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.