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Finding the Fourth Proportional to 35.85, 54.05 and 33.89

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Solution

The fourth proportional to 35.85, 54.05 and 33.89 is: 51.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.85 : 54.05 = 33.89 : x
  2. Step 2: Convert to fraction form
    35.85/54.05 = 33.89/x
  3. Step 3: Cross multiply
    35.85x = 54.05 × 33.89
  4. Step 4: Simplify right side
    35.85x = 1,831.75
  5. Step 5: Solve for x
    x = 1,831.75/35.85
  6. Step 6: Final answer
    x = 51.09

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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.