Home / 89,816.09-123,946.16-51,578.15

Finding the Fourth Proportional to 89,816.09, 123,946.16 and 51,578.15

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Solution

The fourth proportional to 89,816.09, 123,946.16 and 51,578.15 is: 71,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,816.09 : 123,946.16 = 51,578.15 : x
  2. Step 2: Convert to fraction form
    89,816.09/123,946.16 = 51,578.15/x
  3. Step 3: Cross multiply
    89,816.09x = 123,946.16 × 51,578.15
  4. Step 4: Simplify right side
    89,816.09x = 6,392,912,754.78
  5. Step 5: Solve for x
    x = 6,392,912,754.78/89,816.09
  6. Step 6: Final answer
    x = 71,177.82

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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.