Home / 89,692.31-123,766.11-55,231.57

Finding the Fourth Proportional to 89,692.31, 123,766.11 and 55,231.57

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Solution

The fourth proportional to 89,692.31, 123,766.11 and 55,231.57 is: 76,213.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,692.31 : 123,766.11 = 55,231.57 : x
  2. Step 2: Convert to fraction form
    89,692.31/123,766.11 = 55,231.57/x
  3. Step 3: Cross multiply
    89,692.31x = 123,766.11 × 55,231.57
  4. Step 4: Simplify right side
    89,692.31x = 6,835,796,722.80
  5. Step 5: Solve for x
    x = 6,835,796,722.80/89,692.31
  6. Step 6: Final answer
    x = 76,213.85

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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.