Home / 89,808.26-123,942.78-49,529.90

Finding the Fourth Proportional to 89,808.26, 123,942.78 and 49,529.90

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Solution

The fourth proportional to 89,808.26, 123,942.78 and 49,529.90 is: 68,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,808.26 : 123,942.78 = 49,529.90 : x
  2. Step 2: Convert to fraction form
    89,808.26/123,942.78 = 49,529.90/x
  3. Step 3: Cross multiply
    89,808.26x = 123,942.78 × 49,529.90
  4. Step 4: Simplify right side
    89,808.26x = 6,138,873,499.12
  5. Step 5: Solve for x
    x = 6,138,873,499.12/89,808.26
  6. Step 6: Final answer
    x = 68,355.33

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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.