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Finding the Fourth Proportional to 67.00, 92.43 and 43.72

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Solution

The fourth proportional to 67.00, 92.43 and 43.72 is: 60.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.00 : 92.43 = 43.72 : x
  2. Step 2: Convert to fraction form
    67.00/92.43 = 43.72/x
  3. Step 3: Cross multiply
    67.00x = 92.43 × 43.72
  4. Step 4: Simplify right side
    67.00x = 4,041.27
  5. Step 5: Solve for x
    x = 4,041.27/67.00
  6. Step 6: Final answer
    x = 60.32

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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.