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Finding the Fourth Proportional to 48.20, 66.47 and 37.26

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Solution

The fourth proportional to 48.20, 66.47 and 37.26 is: 51.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.20 : 66.47 = 37.26 : x
  2. Step 2: Convert to fraction form
    48.20/66.47 = 37.26/x
  3. Step 3: Cross multiply
    48.20x = 66.47 × 37.26
  4. Step 4: Simplify right side
    48.20x = 2,476.49
  5. Step 5: Solve for x
    x = 2,476.49/48.20
  6. Step 6: Final answer
    x = 51.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.