Home / 65,408.20-98,170.62-30,367.60

Finding the Fourth Proportional to 65,408.20, 98,170.62 and 30,367.60

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Solution

The fourth proportional to 65,408.20, 98,170.62 and 30,367.60 is: 45,578.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,408.20 : 98,170.62 = 30,367.60 : x
  2. Step 2: Convert to fraction form
    65,408.20/98,170.62 = 30,367.60/x
  3. Step 3: Cross multiply
    65,408.20x = 98,170.62 × 30,367.60
  4. Step 4: Simplify right side
    65,408.20x = 2,981,206,119.91
  5. Step 5: Solve for x
    x = 2,981,206,119.91/65,408.20
  6. Step 6: Final answer
    x = 45,578.48

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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.