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Finding the Fourth Proportional to 89,338.32, 134,003.16 and 33,930

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Solution

The fourth proportional to 89,338.32, 134,003.16 and 33,930 is: 50,893.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,338.32 : 134,003.16 = 33,930 : x
  2. Step 2: Convert to fraction form
    89,338.32/134,003.16 = 33,930/x
  3. Step 3: Cross multiply
    89,338.32x = 134,003.16 × 33,930
  4. Step 4: Simplify right side
    89,338.32x = 4,546,727,218.80
  5. Step 5: Solve for x
    x = 4,546,727,218.80/89,338.32
  6. Step 6: Final answer
    x = 50,893.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.