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Finding the Fourth Proportional to 50.85, 70.18 and 33.37

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Solution

The fourth proportional to 50.85, 70.18 and 33.37 is: 46.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.85 : 70.18 = 33.37 : x
  2. Step 2: Convert to fraction form
    50.85/70.18 = 33.37/x
  3. Step 3: Cross multiply
    50.85x = 70.18 × 33.37
  4. Step 4: Simplify right side
    50.85x = 2,341.65
  5. Step 5: Solve for x
    x = 2,341.65/50.85
  6. Step 6: Final answer
    x = 46.05

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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.