Home / 89,845.92-123,985.80-49,563.54

Finding the Fourth Proportional to 89,845.92, 123,985.80 and 49,563.54

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Solution

The fourth proportional to 89,845.92, 123,985.80 and 49,563.54 is: 68,396.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,845.92 : 123,985.80 = 49,563.54 : x
  2. Step 2: Convert to fraction form
    89,845.92/123,985.80 = 49,563.54/x
  3. Step 3: Cross multiply
    89,845.92x = 123,985.80 × 49,563.54
  4. Step 4: Simplify right side
    89,845.92x = 6,145,175,157.73
  5. Step 5: Solve for x
    x = 6,145,175,157.73/89,845.92
  6. Step 6: Final answer
    x = 68,396.82

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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.