Home / 89,426.88-123,361.92-55,912.32

Finding the Fourth Proportional to 89,426.88, 123,361.92 and 55,912.32

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Solution

The fourth proportional to 89,426.88, 123,361.92 and 55,912.32 is: 77,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,426.88 : 123,361.92 = 55,912.32 : x
  2. Step 2: Convert to fraction form
    89,426.88/123,361.92 = 55,912.32/x
  3. Step 3: Cross multiply
    89,426.88x = 123,361.92 × 55,912.32
  4. Step 4: Simplify right side
    89,426.88x = 6,897,451,146.85
  5. Step 5: Solve for x
    x = 6,897,451,146.85/89,426.88
  6. Step 6: Final answer
    x = 77,129.51

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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.