Home / 89,615.64-123,668.62-49,328.54

Finding the Fourth Proportional to 89,615.64, 123,668.62 and 49,328.54

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Solution

The fourth proportional to 89,615.64, 123,668.62 and 49,328.54 is: 68,072.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,615.64 : 123,668.62 = 49,328.54 : x
  2. Step 2: Convert to fraction form
    89,615.64/123,668.62 = 49,328.54/x
  3. Step 3: Cross multiply
    89,615.64x = 123,668.62 × 49,328.54
  4. Step 4: Simplify right side
    89,615.64x = 6,100,393,163.62
  5. Step 5: Solve for x
    x = 6,100,393,163.62/89,615.64
  6. Step 6: Final answer
    x = 68,072.86

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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.