Home / 89,764.07-123,868.78-49,475.61

Finding the Fourth Proportional to 89,764.07, 123,868.78 and 49,475.61

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Solution

The fourth proportional to 89,764.07, 123,868.78 and 49,475.61 is: 68,273.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,764.07 : 123,868.78 = 49,475.61 : x
  2. Step 2: Convert to fraction form
    89,764.07/123,868.78 = 49,475.61/x
  3. Step 3: Cross multiply
    89,764.07x = 123,868.78 × 49,475.61
  4. Step 4: Simplify right side
    89,764.07x = 6,128,483,326.77
  5. Step 5: Solve for x
    x = 6,128,483,326.77/89,764.07
  6. Step 6: Final answer
    x = 68,273.24

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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.