Home / 89,806.51-123,930.60-49,519.59

Finding the Fourth Proportional to 89,806.51, 123,930.60 and 49,519.59

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Solution

The fourth proportional to 89,806.51, 123,930.60 and 49,519.59 is: 68,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,806.51 : 123,930.60 = 49,519.59 : x
  2. Step 2: Convert to fraction form
    89,806.51/123,930.60 = 49,519.59/x
  3. Step 3: Cross multiply
    89,806.51x = 123,930.60 × 49,519.59
  4. Step 4: Simplify right side
    89,806.51x = 6,136,992,500.45
  5. Step 5: Solve for x
    x = 6,136,992,500.45/89,806.51
  6. Step 6: Final answer
    x = 68,335.72

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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.