Home / 47,836.80-71,690.40-31,996.80

Finding the Fourth Proportional to 47,836.80, 71,690.40 and 31,996.80

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Solution

The fourth proportional to 47,836.80, 71,690.40 and 31,996.80 is: 47,951.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,836.80 : 71,690.40 = 31,996.80 : x
  2. Step 2: Convert to fraction form
    47,836.80/71,690.40 = 31,996.80/x
  3. Step 3: Cross multiply
    47,836.80x = 71,690.40 × 31,996.80
  4. Step 4: Simplify right side
    47,836.80x = 2,293,863,390.72
  5. Step 5: Solve for x
    x = 2,293,863,390.72/47,836.80
  6. Step 6: Final answer
    x = 47,951.86

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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.