Home / 40,121.76-60,166.14-12,031.92

Finding the Fourth Proportional to 40,121.76, 60,166.14 and 12,031.92

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Solution

The fourth proportional to 40,121.76, 60,166.14 and 12,031.92 is: 18,042.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.76 : 60,166.14 = 12,031.92 : x
  2. Step 2: Convert to fraction form
    40,121.76/60,166.14 = 12,031.92/x
  3. Step 3: Cross multiply
    40,121.76x = 60,166.14 × 12,031.92
  4. Step 4: Simplify right side
    40,121.76x = 723,914,183.19
  5. Step 5: Solve for x
    x = 723,914,183.19/40,121.76
  6. Step 6: Final answer
    x = 18,042.93

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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.