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Finding the Fourth Proportional to 51,690.93, 71,324.94 and 30,474.29

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Solution

The fourth proportional to 51,690.93, 71,324.94 and 30,474.29 is: 42,049.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,690.93 : 71,324.94 = 30,474.29 : x
  2. Step 2: Convert to fraction form
    51,690.93/71,324.94 = 30,474.29/x
  3. Step 3: Cross multiply
    51,690.93x = 71,324.94 × 30,474.29
  4. Step 4: Simplify right side
    51,690.93x = 2,173,576,905.79
  5. Step 5: Solve for x
    x = 2,173,576,905.79/51,690.93
  6. Step 6: Final answer
    x = 42,049.48

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1.5x scale

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.