Home / 40,129.90-60,183.24-12,048.82

Finding the Fourth Proportional to 40,129.90, 60,183.24 and 12,048.82

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Solution

The fourth proportional to 40,129.90, 60,183.24 and 12,048.82 is: 18,069.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129.90 : 60,183.24 = 12,048.82 : x
  2. Step 2: Convert to fraction form
    40,129.90/60,183.24 = 12,048.82/x
  3. Step 3: Cross multiply
    40,129.90x = 60,183.24 × 12,048.82
  4. Step 4: Simplify right side
    40,129.90x = 725,137,025.78
  5. Step 5: Solve for x
    x = 725,137,025.78/40,129.90
  6. Step 6: Final answer
    x = 18,069.74

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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.