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Finding the Fourth Proportional to 47.94, 71.57 and 41.57

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Solution

The fourth proportional to 47.94, 71.57 and 41.57 is: 62.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    47.94 : 71.57 = 41.57 : x
  2. Step 2: Convert to fraction form
    47.94/71.57 = 41.57/x
  3. Step 3: Cross multiply
    47.94x = 71.57 × 41.57
  4. Step 4: Simplify right side
    47.94x = 2,975.16
  5. Step 5: Solve for x
    x = 2,975.16/47.94
  6. Step 6: Final answer
    x = 62.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.