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Finding the Fourth Proportional to 36.78, 55.44 and 33.51

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Solution

The fourth proportional to 36.78, 55.44 and 33.51 is: 50.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.78 : 55.44 = 33.51 : x
  2. Step 2: Convert to fraction form
    36.78/55.44 = 33.51/x
  3. Step 3: Cross multiply
    36.78x = 55.44 × 33.51
  4. Step 4: Simplify right side
    36.78x = 1,857.79
  5. Step 5: Solve for x
    x = 1,857.79/36.78
  6. Step 6: Final answer
    x = 50.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.