Home / 51,704.43-71,380.51-31,290.30

Finding the Fourth Proportional to 51,704.43, 71,380.51 and 31,290.30

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Solution

The fourth proportional to 51,704.43, 71,380.51 and 31,290.30 is: 43,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,704.43 : 71,380.51 = 31,290.30 : x
  2. Step 2: Convert to fraction form
    51,704.43/71,380.51 = 31,290.30/x
  3. Step 3: Cross multiply
    51,704.43x = 71,380.51 × 31,290.30
  4. Step 4: Simplify right side
    51,704.43x = 2,233,517,493.83
  5. Step 5: Solve for x
    x = 2,233,517,493.83/51,704.43
  6. Step 6: Final answer
    x = 43,197.80

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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.