Home / 79,194.09-118,759.24-28,578.71

Finding the Fourth Proportional to 79,194.09, 118,759.24 and 28,578.71

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Solution

The fourth proportional to 79,194.09, 118,759.24 and 28,578.71 is: 42,856.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,194.09 : 118,759.24 = 28,578.71 : x
  2. Step 2: Convert to fraction form
    79,194.09/118,759.24 = 28,578.71/x
  3. Step 3: Cross multiply
    79,194.09x = 118,759.24 × 28,578.71
  4. Step 4: Simplify right side
    79,194.09x = 3,393,985,879.78
  5. Step 5: Solve for x
    x = 3,393,985,879.78/79,194.09
  6. Step 6: Final answer
    x = 42,856.56

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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.