Home / 89,815.96-123,945.97-51,578.01

Finding the Fourth Proportional to 89,815.96, 123,945.97 and 51,578.01

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Solution

The fourth proportional to 89,815.96, 123,945.97 and 51,578.01 is: 71,177.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815.96 : 123,945.97 = 51,578.01 : x
  2. Step 2: Convert to fraction form
    89,815.96/123,945.97 = 51,578.01/x
  3. Step 3: Cross multiply
    89,815.96x = 123,945.97 × 51,578.01
  4. Step 4: Simplify right side
    89,815.96x = 6,392,886,480.12
  5. Step 5: Solve for x
    x = 6,392,886,480.12/89,815.96
  6. Step 6: Final answer
    x = 71,177.62

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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.