Home / 40,081.88-55,314.63-22,176.60

Finding the Fourth Proportional to 40,081.88, 55,314.63 and 22,176.60

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Solution

The fourth proportional to 40,081.88, 55,314.63 and 22,176.60 is: 30,604.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,081.88 : 55,314.63 = 22,176.60 : x
  2. Step 2: Convert to fraction form
    40,081.88/55,314.63 = 22,176.60/x
  3. Step 3: Cross multiply
    40,081.88x = 55,314.63 × 22,176.60
  4. Step 4: Simplify right side
    40,081.88x = 1,226,690,423.66
  5. Step 5: Solve for x
    x = 1,226,690,423.66/40,081.88
  6. Step 6: Final answer
    x = 30,604.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.