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Finding the Fourth Proportional to 55.48, 83.22 and 27

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Solution

The fourth proportional to 55.48, 83.22 and 27 is: 40.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.48 : 83.22 = 27 : x
  2. Step 2: Convert to fraction form
    55.48/83.22 = 27/x
  3. Step 3: Cross multiply
    55.48x = 83.22 × 27
  4. Step 4: Simplify right side
    55.48x = 2,246.94
  5. Step 5: Solve for x
    x = 2,246.94/55.48
  6. Step 6: Final answer
    x = 40.50

Related Problems

Find fourth proportional to 27.74, 41.61 and 13.50
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Similar ratio
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1.5x scale

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.