Home / 79,178.97-118,778.25-25,876.32

Finding the Fourth Proportional to 79,178.97, 118,778.25 and 25,876.32

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Solution

The fourth proportional to 79,178.97, 118,778.25 and 25,876.32 is: 38,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,178.97 : 118,778.25 = 25,876.32 : x
  2. Step 2: Convert to fraction form
    79,178.97/118,778.25 = 25,876.32/x
  3. Step 3: Cross multiply
    79,178.97x = 118,778.25 × 25,876.32
  4. Step 4: Simplify right side
    79,178.97x = 3,073,544,006.04
  5. Step 5: Solve for x
    x = 3,073,544,006.04/79,178.97
  6. Step 6: Final answer
    x = 38,817.68

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1.5x scale

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.