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Finding the Fourth Proportional to 71.83, 107.26 and 62.62

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Solution

The fourth proportional to 71.83, 107.26 and 62.62 is: 93.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71.83 : 107.26 = 62.62 : x
  2. Step 2: Convert to fraction form
    71.83/107.26 = 62.62/x
  3. Step 3: Cross multiply
    71.83x = 107.26 × 62.62
  4. Step 4: Simplify right side
    71.83x = 6,716.62
  5. Step 5: Solve for x
    x = 6,716.62/71.83
  6. Step 6: Final answer
    x = 93.51

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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.