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Finding the Fourth Proportional to 67.98, 93.76 and 43.41

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Solution

The fourth proportional to 67.98, 93.76 and 43.41 is: 59.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.98 : 93.76 = 43.41 : x
  2. Step 2: Convert to fraction form
    67.98/93.76 = 43.41/x
  3. Step 3: Cross multiply
    67.98x = 93.76 × 43.41
  4. Step 4: Simplify right side
    67.98x = 4,070.01
  5. Step 5: Solve for x
    x = 4,070.01/67.98
  6. Step 6: Final answer
    x = 59.87

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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.