Home / 89,815.24-123,942.18-49,530.70

Finding the Fourth Proportional to 89,815.24, 123,942.18 and 49,530.70

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Solution

The fourth proportional to 89,815.24, 123,942.18 and 49,530.70 is: 68,350.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815.24 : 123,942.18 = 49,530.70 : x
  2. Step 2: Convert to fraction form
    89,815.24/123,942.18 = 49,530.70/x
  3. Step 3: Cross multiply
    89,815.24x = 123,942.18 × 49,530.70
  4. Step 4: Simplify right side
    89,815.24x = 6,138,942,934.93
  5. Step 5: Solve for x
    x = 6,138,942,934.93/89,815.24
  6. Step 6: Final answer
    x = 68,350.79

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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.