Home / 89,369.49-123,299.03-57,122.97

Finding the Fourth Proportional to 89,369.49, 123,299.03 and 57,122.97

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Solution

The fourth proportional to 89,369.49, 123,299.03 and 57,122.97 is: 78,809.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,369.49 : 123,299.03 = 57,122.97 : x
  2. Step 2: Convert to fraction form
    89,369.49/123,299.03 = 57,122.97/x
  3. Step 3: Cross multiply
    89,369.49x = 123,299.03 × 57,122.97
  4. Step 4: Simplify right side
    89,369.49x = 7,043,206,791.72
  5. Step 5: Solve for x
    x = 7,043,206,791.72/89,369.49
  6. Step 6: Final answer
    x = 78,809.97

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1.5x scale

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.