Home / 89,796.64-123,920.24-49,511.84

Finding the Fourth Proportional to 89,796.64, 123,920.24 and 49,511.84

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Solution

The fourth proportional to 89,796.64, 123,920.24 and 49,511.84 is: 68,326.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,796.64 : 123,920.24 = 49,511.84 : x
  2. Step 2: Convert to fraction form
    89,796.64/123,920.24 = 49,511.84/x
  3. Step 3: Cross multiply
    89,796.64x = 123,920.24 × 49,511.84
  4. Step 4: Simplify right side
    89,796.64x = 6,135,519,095.64
  5. Step 5: Solve for x
    x = 6,135,519,095.64/89,796.64
  6. Step 6: Final answer
    x = 68,326.82

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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.