Home / 40,081.26-60,105.45-11,991.42

Finding the Fourth Proportional to 40,081.26, 60,105.45 and 11,991.42

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Solution

The fourth proportional to 40,081.26, 60,105.45 and 11,991.42 is: 17,982.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,081.26 : 60,105.45 = 11,991.42 : x
  2. Step 2: Convert to fraction form
    40,081.26/60,105.45 = 11,991.42/x
  3. Step 3: Cross multiply
    40,081.26x = 60,105.45 × 11,991.42
  4. Step 4: Simplify right side
    40,081.26x = 720,749,695.24
  5. Step 5: Solve for x
    x = 720,749,695.24/40,081.26
  6. Step 6: Final answer
    x = 17,982.21

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1.5x scale

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.