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Finding the Fourth Proportional to 65.98, 99.06 and 62.74

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Solution

The fourth proportional to 65.98, 99.06 and 62.74 is: 94.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.98 : 99.06 = 62.74 : x
  2. Step 2: Convert to fraction form
    65.98/99.06 = 62.74/x
  3. Step 3: Cross multiply
    65.98x = 99.06 × 62.74
  4. Step 4: Simplify right side
    65.98x = 6,215.02
  5. Step 5: Solve for x
    x = 6,215.02/65.98
  6. Step 6: Final answer
    x = 94.20

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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.