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Finding the Fourth Proportional to 63.58, 95.43 and 47.50

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Solution

The fourth proportional to 63.58, 95.43 and 47.50 is: 71.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.58 : 95.43 = 47.50 : x
  2. Step 2: Convert to fraction form
    63.58/95.43 = 47.50/x
  3. Step 3: Cross multiply
    63.58x = 95.43 × 47.50
  4. Step 4: Simplify right side
    63.58x = 4,532.93
  5. Step 5: Solve for x
    x = 4,532.93/63.58
  6. Step 6: Final answer
    x = 71.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.