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Finding the Fourth Proportional to 48.57, 67.03 and 26.74

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Solution

The fourth proportional to 48.57, 67.03 and 26.74 is: 36.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.57 : 67.03 = 26.74 : x
  2. Step 2: Convert to fraction form
    48.57/67.03 = 26.74/x
  3. Step 3: Cross multiply
    48.57x = 67.03 × 26.74
  4. Step 4: Simplify right side
    48.57x = 1,792.25
  5. Step 5: Solve for x
    x = 1,792.25/48.57
  6. Step 6: Final answer
    x = 36.90

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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.