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Finding the Fourth Proportional to 68.03, 93.93 and 50.56

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Solution

The fourth proportional to 68.03, 93.93 and 50.56 is: 69.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.03 : 93.93 = 50.56 : x
  2. Step 2: Convert to fraction form
    68.03/93.93 = 50.56/x
  3. Step 3: Cross multiply
    68.03x = 93.93 × 50.56
  4. Step 4: Simplify right side
    68.03x = 4,749.49
  5. Step 5: Solve for x
    x = 4,749.49/68.03
  6. Step 6: Final answer
    x = 69.82

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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.