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Finding the Fourth Proportional to 75.88, 104.74 and 50.08

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Solution

The fourth proportional to 75.88, 104.74 and 50.08 is: 69.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.88 : 104.74 = 50.08 : x
  2. Step 2: Convert to fraction form
    75.88/104.74 = 50.08/x
  3. Step 3: Cross multiply
    75.88x = 104.74 × 50.08
  4. Step 4: Simplify right side
    75.88x = 5,245.38
  5. Step 5: Solve for x
    x = 5,245.38/75.88
  6. Step 6: Final answer
    x = 69.13

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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.