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Finding the Fourth Proportional to 50.01, 68.90 and 39.08

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Solution

The fourth proportional to 50.01, 68.90 and 39.08 is: 53.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.01 : 68.90 = 39.08 : x
  2. Step 2: Convert to fraction form
    50.01/68.90 = 39.08/x
  3. Step 3: Cross multiply
    50.01x = 68.90 × 39.08
  4. Step 4: Simplify right side
    50.01x = 2,692.61
  5. Step 5: Solve for x
    x = 2,692.61/50.01
  6. Step 6: Final answer
    x = 53.84

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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.