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Finding the Fourth Proportional to 65.62, 97.80 and 62.14

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Solution

The fourth proportional to 65.62, 97.80 and 62.14 is: 92.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.62 : 97.80 = 62.14 : x
  2. Step 2: Convert to fraction form
    65.62/97.80 = 62.14/x
  3. Step 3: Cross multiply
    65.62x = 97.80 × 62.14
  4. Step 4: Simplify right side
    65.62x = 6,077.29
  5. Step 5: Solve for x
    x = 6,077.29/65.62
  6. Step 6: Final answer
    x = 92.61

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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.