Home / 78,110.92-117,184.20-25,519.24

Finding the Fourth Proportional to 78,110.92, 117,184.20 and 25,519.24

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Solution

The fourth proportional to 78,110.92, 117,184.20 and 25,519.24 is: 38,284.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,110.92 : 117,184.20 = 25,519.24 : x
  2. Step 2: Convert to fraction form
    78,110.92/117,184.20 = 25,519.24/x
  3. Step 3: Cross multiply
    78,110.92x = 117,184.20 × 25,519.24
  4. Step 4: Simplify right side
    78,110.92x = 2,990,451,724.01
  5. Step 5: Solve for x
    x = 2,990,451,724.01/78,110.92
  6. Step 6: Final answer
    x = 38,284.68

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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.