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Finding the Fourth Proportional to 67.05, 92.63 and 59.70

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Solution

The fourth proportional to 67.05, 92.63 and 59.70 is: 82.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.05 : 92.63 = 59.70 : x
  2. Step 2: Convert to fraction form
    67.05/92.63 = 59.70/x
  3. Step 3: Cross multiply
    67.05x = 92.63 × 59.70
  4. Step 4: Simplify right side
    67.05x = 5,530.01
  5. Step 5: Solve for x
    x = 5,530.01/67.05
  6. Step 6: Final answer
    x = 82.48

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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.