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Finding the Fourth Proportional to 59.51, 82.12 and 33.28

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Solution

The fourth proportional to 59.51, 82.12 and 33.28 is: 45.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.51 : 82.12 = 33.28 : x
  2. Step 2: Convert to fraction form
    59.51/82.12 = 33.28/x
  3. Step 3: Cross multiply
    59.51x = 82.12 × 33.28
  4. Step 4: Simplify right side
    59.51x = 2,732.58
  5. Step 5: Solve for x
    x = 2,732.58/59.51
  6. Step 6: Final answer
    x = 45.92

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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.