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Finding the Fourth Proportional to 36, 53.88 and 32.36

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Solution

The fourth proportional to 36, 53.88 and 32.36 is: 48.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36 : 53.88 = 32.36 : x
  2. Step 2: Convert to fraction form
    36/53.88 = 32.36/x
  3. Step 3: Cross multiply
    36x = 53.88 × 32.36
  4. Step 4: Simplify right side
    36x = 1,743.29
  5. Step 5: Solve for x
    x = 1,743.29/36
  6. Step 6: Final answer
    x = 48.42

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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.