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Finding the Fourth Proportional to 63.50, 95.63 and 53.94

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Solution

The fourth proportional to 63.50, 95.63 and 53.94 is: 81.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.50 : 95.63 = 53.94 : x
  2. Step 2: Convert to fraction form
    63.50/95.63 = 53.94/x
  3. Step 3: Cross multiply
    63.50x = 95.63 × 53.94
  4. Step 4: Simplify right side
    63.50x = 5,158.01
  5. Step 5: Solve for x
    x = 5,158.01/63.50
  6. Step 6: Final answer
    x = 81.23

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.