Home / 89,670.44-123,745.20-49,383.85

Finding the Fourth Proportional to 89,670.44, 123,745.20 and 49,383.85

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Solution

The fourth proportional to 89,670.44, 123,745.20 and 49,383.85 is: 68,149.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,670.44 : 123,745.20 = 49,383.85 : x
  2. Step 2: Convert to fraction form
    89,670.44/123,745.20 = 49,383.85/x
  3. Step 3: Cross multiply
    89,670.44x = 123,745.20 × 49,383.85
  4. Step 4: Simplify right side
    89,670.44x = 6,111,014,395.02
  5. Step 5: Solve for x
    x = 6,111,014,395.02/89,670.44
  6. Step 6: Final answer
    x = 68,149.71

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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.