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Finding the Fourth Proportional to 79,908.19, 110,212.27 and 49,694.78

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Solution

The fourth proportional to 79,908.19, 110,212.27 and 49,694.78 is: 68,540.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,908.19 : 110,212.27 = 49,694.78 : x
  2. Step 2: Convert to fraction form
    79,908.19/110,212.27 = 49,694.78/x
  3. Step 3: Cross multiply
    79,908.19x = 110,212.27 × 49,694.78
  4. Step 4: Simplify right side
    79,908.19x = 5,476,974,510.95
  5. Step 5: Solve for x
    x = 5,476,974,510.95/79,908.19
  6. Step 6: Final answer
    x = 68,540.84

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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.