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Finding the Fourth Proportional to 47.62, 65.73 and 37.93

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Solution

The fourth proportional to 47.62, 65.73 and 37.93 is: 52.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47.62 : 65.73 = 37.93 : x
  2. Step 2: Convert to fraction form
    47.62/65.73 = 37.93/x
  3. Step 3: Cross multiply
    47.62x = 65.73 × 37.93
  4. Step 4: Simplify right side
    47.62x = 2,493.14
  5. Step 5: Solve for x
    x = 2,493.14/47.62
  6. Step 6: Final answer
    x = 52.35

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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.