Home / 50,704.20-76,056.30-21,112.20

Finding the Fourth Proportional to 50,704.20, 76,056.30 and 21,112.20

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Solution

The fourth proportional to 50,704.20, 76,056.30 and 21,112.20 is: 31,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,704.20 : 76,056.30 = 21,112.20 : x
  2. Step 2: Convert to fraction form
    50,704.20/76,056.30 = 21,112.20/x
  3. Step 3: Cross multiply
    50,704.20x = 76,056.30 × 21,112.20
  4. Step 4: Simplify right side
    50,704.20x = 1,605,715,816.86
  5. Step 5: Solve for x
    x = 1,605,715,816.86/50,704.20
  6. Step 6: Final answer
    x = 31,668.30

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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.