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Finding the Fourth Proportional to 55.10, 76 and 33.24

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Solution

The fourth proportional to 55.10, 76 and 33.24 is: 45.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.10 : 76 = 33.24 : x
  2. Step 2: Convert to fraction form
    55.10/76 = 33.24/x
  3. Step 3: Cross multiply
    55.10x = 76 × 33.24
  4. Step 4: Simplify right side
    55.10x = 2,526.24
  5. Step 5: Solve for x
    x = 2,526.24/55.10
  6. Step 6: Final answer
    x = 45.85

Related Problems

Find fourth proportional to 27.55, 38 and 16.62
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Double scale
Find fourth proportional to 56.10, 77.38 and 34.24
Similar ratio
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1.5x scale

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.