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Finding the Fourth Proportional to 50.90, 69.93 and 49.52

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Solution

The fourth proportional to 50.90, 69.93 and 49.52 is: 68.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.90 : 69.93 = 49.52 : x
  2. Step 2: Convert to fraction form
    50.90/69.93 = 49.52/x
  3. Step 3: Cross multiply
    50.90x = 69.93 × 49.52
  4. Step 4: Simplify right side
    50.90x = 3,463.11
  5. Step 5: Solve for x
    x = 3,463.11/50.90
  6. Step 6: Final answer
    x = 68.04

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.