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Finding the Fourth Proportional to 48.73, 66.37 and 48.58

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Solution

The fourth proportional to 48.73, 66.37 and 48.58 is: 66.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.73 : 66.37 = 48.58 : x
  2. Step 2: Convert to fraction form
    48.73/66.37 = 48.58/x
  3. Step 3: Cross multiply
    48.73x = 66.37 × 48.58
  4. Step 4: Simplify right side
    48.73x = 3,224.25
  5. Step 5: Solve for x
    x = 3,224.25/48.73
  6. Step 6: Final answer
    x = 66.17

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.