Home / 79,060.26-109,105.20-43,251.78

Finding the Fourth Proportional to 79,060.26, 109,105.20 and 43,251.78

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Solution

The fourth proportional to 79,060.26, 109,105.20 and 43,251.78 is: 59,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,060.26 : 109,105.20 = 43,251.78 : x
  2. Step 2: Convert to fraction form
    79,060.26/109,105.20 = 43,251.78/x
  3. Step 3: Cross multiply
    79,060.26x = 109,105.20 × 43,251.78
  4. Step 4: Simplify right side
    79,060.26x = 4,718,994,107.26
  5. Step 5: Solve for x
    x = 4,718,994,107.26/79,060.26
  6. Step 6: Final answer
    x = 59,688.57

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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.