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Finding the Fourth Proportional to 67.74, 102.14 and 62.07

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Solution

The fourth proportional to 67.74, 102.14 and 62.07 is: 93.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.74 : 102.14 = 62.07 : x
  2. Step 2: Convert to fraction form
    67.74/102.14 = 62.07/x
  3. Step 3: Cross multiply
    67.74x = 102.14 × 62.07
  4. Step 4: Simplify right side
    67.74x = 6,339.19
  5. Step 5: Solve for x
    x = 6,339.19/67.74
  6. Step 6: Final answer
    x = 93.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.