Home / 49,211.80-73,827.30-21,131.80

Finding the Fourth Proportional to 49,211.80, 73,827.30 and 21,131.80

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Solution

The fourth proportional to 49,211.80, 73,827.30 and 21,131.80 is: 31,701.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,211.80 : 73,827.30 = 21,131.80 : x
  2. Step 2: Convert to fraction form
    49,211.80/73,827.30 = 21,131.80/x
  3. Step 3: Cross multiply
    49,211.80x = 73,827.30 × 21,131.80
  4. Step 4: Simplify right side
    49,211.80x = 1,560,103,738.14
  5. Step 5: Solve for x
    x = 1,560,103,738.14/49,211.80
  6. Step 6: Final answer
    x = 31,701.82

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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.