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Finding the Fourth Proportional to 66.37, 99.46 and 37.49

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Solution

The fourth proportional to 66.37, 99.46 and 37.49 is: 56.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66.37 : 99.46 = 37.49 : x
  2. Step 2: Convert to fraction form
    66.37/99.46 = 37.49/x
  3. Step 3: Cross multiply
    66.37x = 99.46 × 37.49
  4. Step 4: Simplify right side
    66.37x = 3,728.57
  5. Step 5: Solve for x
    x = 3,728.57/66.37
  6. Step 6: Final answer
    x = 56.18

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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.