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Finding the Fourth Proportional to 67.60, 93.27 and 53.02

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Solution

The fourth proportional to 67.60, 93.27 and 53.02 is: 73.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.60 : 93.27 = 53.02 : x
  2. Step 2: Convert to fraction form
    67.60/93.27 = 53.02/x
  3. Step 3: Cross multiply
    67.60x = 93.27 × 53.02
  4. Step 4: Simplify right side
    67.60x = 4,945.18
  5. Step 5: Solve for x
    x = 4,945.18/67.60
  6. Step 6: Final answer
    x = 73.15

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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.