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Finding the Fourth Proportional to 65.50, 98.05 and 44.89

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Solution

The fourth proportional to 65.50, 98.05 and 44.89 is: 67.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.50 : 98.05 = 44.89 : x
  2. Step 2: Convert to fraction form
    65.50/98.05 = 44.89/x
  3. Step 3: Cross multiply
    65.50x = 98.05 × 44.89
  4. Step 4: Simplify right side
    65.50x = 4,401.19
  5. Step 5: Solve for x
    x = 4,401.19/65.50
  6. Step 6: Final answer
    x = 67.20

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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.