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Finding the Fourth Proportional to 62.62, 93.93 and 39.84

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Solution

The fourth proportional to 62.62, 93.93 and 39.84 is: 59.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.62 : 93.93 = 39.84 : x
  2. Step 2: Convert to fraction form
    62.62/93.93 = 39.84/x
  3. Step 3: Cross multiply
    62.62x = 93.93 × 39.84
  4. Step 4: Simplify right side
    62.62x = 3,742.17
  5. Step 5: Solve for x
    x = 3,742.17/62.62
  6. Step 6: Final answer
    x = 59.76

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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.