Home / 81,604.20-122,172.70-50,228.20

Finding the Fourth Proportional to 81,604.20, 122,172.70 and 50,228.20

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Solution

The fourth proportional to 81,604.20, 122,172.70 and 50,228.20 is: 75,198.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,604.20 : 122,172.70 = 50,228.20 : x
  2. Step 2: Convert to fraction form
    81,604.20/122,172.70 = 50,228.20/x
  3. Step 3: Cross multiply
    81,604.20x = 122,172.70 × 50,228.20
  4. Step 4: Simplify right side
    81,604.20x = 6,136,514,810.14
  5. Step 5: Solve for x
    x = 6,136,514,810.14/81,604.20
  6. Step 6: Final answer
    x = 75,198.52

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1.5x scale

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.