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Finding the Fourth Proportional to 61.41, 84.83 and 53.37

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Solution

The fourth proportional to 61.41, 84.83 and 53.37 is: 73.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.41 : 84.83 = 53.37 : x
  2. Step 2: Convert to fraction form
    61.41/84.83 = 53.37/x
  3. Step 3: Cross multiply
    61.41x = 84.83 × 53.37
  4. Step 4: Simplify right side
    61.41x = 4,527.11
  5. Step 5: Solve for x
    x = 4,527.11/61.41
  6. Step 6: Final answer
    x = 73.72

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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.