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Finding the Fourth Proportional to 55.42, 83.06 and 46.37

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Solution

The fourth proportional to 55.42, 83.06 and 46.37 is: 69.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.42 : 83.06 = 46.37 : x
  2. Step 2: Convert to fraction form
    55.42/83.06 = 46.37/x
  3. Step 3: Cross multiply
    55.42x = 83.06 × 46.37
  4. Step 4: Simplify right side
    55.42x = 3,851.64
  5. Step 5: Solve for x
    x = 3,851.64/55.42
  6. Step 6: Final answer
    x = 69.50

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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.