Home / 89,538.78-123,566.74-49,255.64

Finding the Fourth Proportional to 89,538.78, 123,566.74 and 49,255.64

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Solution

The fourth proportional to 89,538.78, 123,566.74 and 49,255.64 is: 67,974.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,538.78 : 123,566.74 = 49,255.64 : x
  2. Step 2: Convert to fraction form
    89,538.78/123,566.74 = 49,255.64/x
  3. Step 3: Cross multiply
    89,538.78x = 123,566.74 × 49,255.64
  4. Step 4: Simplify right side
    89,538.78x = 6,086,358,861.41
  5. Step 5: Solve for x
    x = 6,086,358,861.41/89,538.78
  6. Step 6: Final answer
    x = 67,974.56

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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.