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Finding the Fourth Proportional to 51.22, 70.54 and 46.54

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Solution

The fourth proportional to 51.22, 70.54 and 46.54 is: 64.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51.22 : 70.54 = 46.54 : x
  2. Step 2: Convert to fraction form
    51.22/70.54 = 46.54/x
  3. Step 3: Cross multiply
    51.22x = 70.54 × 46.54
  4. Step 4: Simplify right side
    51.22x = 3,282.93
  5. Step 5: Solve for x
    x = 3,282.93/51.22
  6. Step 6: Final answer
    x = 64.09

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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.