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Finding the Fourth Proportional to 67.42, 93.01 and 60.77

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Solution

The fourth proportional to 67.42, 93.01 and 60.77 is: 83.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.42 : 93.01 = 60.77 : x
  2. Step 2: Convert to fraction form
    67.42/93.01 = 60.77/x
  3. Step 3: Cross multiply
    67.42x = 93.01 × 60.77
  4. Step 4: Simplify right side
    67.42x = 5,652.22
  5. Step 5: Solve for x
    x = 5,652.22/67.42
  6. Step 6: Final answer
    x = 83.84

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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.