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Finding the Fourth Proportional to 55.10, 82.44 and 46.53

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Solution

The fourth proportional to 55.10, 82.44 and 46.53 is: 69.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.10 : 82.44 = 46.53 : x
  2. Step 2: Convert to fraction form
    55.10/82.44 = 46.53/x
  3. Step 3: Cross multiply
    55.10x = 82.44 × 46.53
  4. Step 4: Simplify right side
    55.10x = 3,835.93
  5. Step 5: Solve for x
    x = 3,835.93/55.10
  6. Step 6: Final answer
    x = 69.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.