Home / 40,186.20-60,289.38-12,105.66

Finding the Fourth Proportional to 40,186.20, 60,289.38 and 12,105.66

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Solution

The fourth proportional to 40,186.20, 60,289.38 and 12,105.66 is: 18,161.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,186.20 : 60,289.38 = 12,105.66 : x
  2. Step 2: Convert to fraction form
    40,186.20/60,289.38 = 12,105.66/x
  3. Step 3: Cross multiply
    40,186.20x = 60,289.38 × 12,105.66
  4. Step 4: Simplify right side
    40,186.20x = 729,842,735.89
  5. Step 5: Solve for x
    x = 729,842,735.89/40,186.20
  6. Step 6: Final answer
    x = 18,161.53

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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.