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Finding the Fourth Proportional to 51.73, 71.19 and 37.15

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Solution

The fourth proportional to 51.73, 71.19 and 37.15 is: 51.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51.73 : 71.19 = 37.15 : x
  2. Step 2: Convert to fraction form
    51.73/71.19 = 37.15/x
  3. Step 3: Cross multiply
    51.73x = 71.19 × 37.15
  4. Step 4: Simplify right side
    51.73x = 2,644.71
  5. Step 5: Solve for x
    x = 2,644.71/51.73
  6. Step 6: Final answer
    x = 51.13

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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.