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Finding the Fourth Proportional to 64.97, 98.01 and 62.61

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Solution

The fourth proportional to 64.97, 98.01 and 62.61 is: 94.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.97 : 98.01 = 62.61 : x
  2. Step 2: Convert to fraction form
    64.97/98.01 = 62.61/x
  3. Step 3: Cross multiply
    64.97x = 98.01 × 62.61
  4. Step 4: Simplify right side
    64.97x = 6,136.04
  5. Step 5: Solve for x
    x = 6,136.04/64.97
  6. Step 6: Final answer
    x = 94.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.