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Finding the Fourth Proportional to 66.37, 98.97 and 62.77

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Solution

The fourth proportional to 66.37, 98.97 and 62.77 is: 93.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66.37 : 98.97 = 62.77 : x
  2. Step 2: Convert to fraction form
    66.37/98.97 = 62.77/x
  3. Step 3: Cross multiply
    66.37x = 98.97 × 62.77
  4. Step 4: Simplify right side
    66.37x = 6,212.35
  5. Step 5: Solve for x
    x = 6,212.35/66.37
  6. Step 6: Final answer
    x = 93.60

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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.