Home / 40,081.11-60,121.05-13,786.08

Finding the Fourth Proportional to 40,081.11, 60,121.05 and 13,786.08

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Solution

The fourth proportional to 40,081.11, 60,121.05 and 13,786.08 is: 20,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,081.11 : 60,121.05 = 13,786.08 : x
  2. Step 2: Convert to fraction form
    40,081.11/60,121.05 = 13,786.08/x
  3. Step 3: Cross multiply
    40,081.11x = 60,121.05 × 13,786.08
  4. Step 4: Simplify right side
    40,081.11x = 828,833,604.98
  5. Step 5: Solve for x
    x = 828,833,604.98/40,081.11
  6. Step 6: Final answer
    x = 20,678.91

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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.