Home / 78,493.20-117,739.26-25,906.92

Finding the Fourth Proportional to 78,493.20, 117,739.26 and 25,906.92

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Solution

The fourth proportional to 78,493.20, 117,739.26 and 25,906.92 is: 38,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,493.20 : 117,739.26 = 25,906.92 : x
  2. Step 2: Convert to fraction form
    78,493.20/117,739.26 = 25,906.92/x
  3. Step 3: Cross multiply
    78,493.20x = 117,739.26 × 25,906.92
  4. Step 4: Simplify right side
    78,493.20x = 3,050,261,589.68
  5. Step 5: Solve for x
    x = 3,050,261,589.68/78,493.20
  6. Step 6: Final answer
    x = 38,860.20

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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.