Home / 89,804.20-123,930.68-49,519.56

Finding the Fourth Proportional to 89,804.20, 123,930.68 and 49,519.56

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Solution

The fourth proportional to 89,804.20, 123,930.68 and 49,519.56 is: 68,337.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,804.20 : 123,930.68 = 49,519.56 : x
  2. Step 2: Convert to fraction form
    89,804.20/123,930.68 = 49,519.56/x
  3. Step 3: Cross multiply
    89,804.20x = 123,930.68 × 49,519.56
  4. Step 4: Simplify right side
    89,804.20x = 6,136,992,744.10
  5. Step 5: Solve for x
    x = 6,136,992,744.10/89,804.20
  6. Step 6: Final answer
    x = 68,337.48

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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.