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Finding the Fourth Proportional to 67.45, 92.98 and 48.01

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Solution

The fourth proportional to 67.45, 92.98 and 48.01 is: 66.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.45 : 92.98 = 48.01 : x
  2. Step 2: Convert to fraction form
    67.45/92.98 = 48.01/x
  3. Step 3: Cross multiply
    67.45x = 92.98 × 48.01
  4. Step 4: Simplify right side
    67.45x = 4,463.97
  5. Step 5: Solve for x
    x = 4,463.97/67.45
  6. Step 6: Final answer
    x = 66.18

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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.