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Finding the Fourth Proportional to 71.97, 107.48 and 62.93

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Solution

The fourth proportional to 71.97, 107.48 and 62.93 is: 93.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71.97 : 107.48 = 62.93 : x
  2. Step 2: Convert to fraction form
    71.97/107.48 = 62.93/x
  3. Step 3: Cross multiply
    71.97x = 107.48 × 62.93
  4. Step 4: Simplify right side
    71.97x = 6,763.40
  5. Step 5: Solve for x
    x = 6,763.40/71.97
  6. Step 6: Final answer
    x = 93.98

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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.