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Finding the Fourth Proportional to 67.45, 93.04 and 46.71

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Solution

The fourth proportional to 67.45, 93.04 and 46.71 is: 64.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.45 : 93.04 = 46.71 : x
  2. Step 2: Convert to fraction form
    67.45/93.04 = 46.71/x
  3. Step 3: Cross multiply
    67.45x = 93.04 × 46.71
  4. Step 4: Simplify right side
    67.45x = 4,345.90
  5. Step 5: Solve for x
    x = 4,345.90/67.45
  6. Step 6: Final answer
    x = 64.43

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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.