Home / 71,914.08-99,238.68-40,081.44

Finding the Fourth Proportional to 71,914.08, 99,238.68 and 40,081.44

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Solution

The fourth proportional to 71,914.08, 99,238.68 and 40,081.44 is: 55,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,914.08 : 99,238.68 = 40,081.44 : x
  2. Step 2: Convert to fraction form
    71,914.08/99,238.68 = 40,081.44/x
  3. Step 3: Cross multiply
    71,914.08x = 99,238.68 × 40,081.44
  4. Step 4: Simplify right side
    71,914.08x = 3,977,629,198.10
  5. Step 5: Solve for x
    x = 3,977,629,198.10/71,914.08
  6. Step 6: Final answer
    x = 55,310.85

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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.