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Finding the Fourth Proportional to 46.25, 63.75 and 35.31

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Solution

The fourth proportional to 46.25, 63.75 and 35.31 is: 48.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.25 : 63.75 = 35.31 : x
  2. Step 2: Convert to fraction form
    46.25/63.75 = 35.31/x
  3. Step 3: Cross multiply
    46.25x = 63.75 × 35.31
  4. Step 4: Simplify right side
    46.25x = 2,251.01
  5. Step 5: Solve for x
    x = 2,251.01/46.25
  6. Step 6: Final answer
    x = 48.68

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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.