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Finding the Fourth Proportional to 50.10, 68.69 and 48.48

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Solution

The fourth proportional to 50.10, 68.69 and 48.48 is: 66.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.10 : 68.69 = 48.48 : x
  2. Step 2: Convert to fraction form
    50.10/68.69 = 48.48/x
  3. Step 3: Cross multiply
    50.10x = 68.69 × 48.48
  4. Step 4: Simplify right side
    50.10x = 3,329.85
  5. Step 5: Solve for x
    x = 3,329.85/50.10
  6. Step 6: Final answer
    x = 66.46

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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.