Home / 78,376.20-108,158.40-44,383.80

Finding the Fourth Proportional to 78,376.20, 108,158.40 and 44,383.80

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Solution

The fourth proportional to 78,376.20, 108,158.40 and 44,383.80 is: 61,249.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,376.20 : 108,158.40 = 44,383.80 : x
  2. Step 2: Convert to fraction form
    78,376.20/108,158.40 = 44,383.80/x
  3. Step 3: Cross multiply
    78,376.20x = 108,158.40 × 44,383.80
  4. Step 4: Simplify right side
    78,376.20x = 4,800,480,793.92
  5. Step 5: Solve for x
    x = 4,800,480,793.92/78,376.20
  6. Step 6: Final answer
    x = 61,249.22

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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.