Home / 327,401.19-491,105.43-90,745.92

Finding the Fourth Proportional to 327,401.19, 491,105.43 and 90,745.92

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Solution

The fourth proportional to 327,401.19, 491,105.43 and 90,745.92 is: 136,119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,401.19 : 491,105.43 = 90,745.92 : x
  2. Step 2: Convert to fraction form
    327,401.19/491,105.43 = 90,745.92/x
  3. Step 3: Cross multiply
    327,401.19x = 491,105.43 × 90,745.92
  4. Step 4: Simplify right side
    327,401.19x = 44,565,814,062.35
  5. Step 5: Solve for x
    x = 44,565,814,062.35/327,401.19
  6. Step 6: Final answer
    x = 136,119.89

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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.