Home / 72,524.30-100,081.92-40,257.03

Finding the Fourth Proportional to 72,524.30, 100,081.92 and 40,257.03

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Solution

The fourth proportional to 72,524.30, 100,081.92 and 40,257.03 is: 55,553.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,524.30 : 100,081.92 = 40,257.03 : x
  2. Step 2: Convert to fraction form
    72,524.30/100,081.92 = 40,257.03/x
  3. Step 3: Cross multiply
    72,524.30x = 100,081.92 × 40,257.03
  4. Step 4: Simplify right side
    72,524.30x = 4,029,000,855.90
  5. Step 5: Solve for x
    x = 4,029,000,855.90/72,524.30
  6. Step 6: Final answer
    x = 55,553.81

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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.