Home / 51,211.20-76,816.80-50,433.60

Finding the Fourth Proportional to 51,211.20, 76,816.80 and 50,433.60

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Solution

The fourth proportional to 51,211.20, 76,816.80 and 50,433.60 is: 75,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,211.20 : 76,816.80 = 50,433.60 : x
  2. Step 2: Convert to fraction form
    51,211.20/76,816.80 = 50,433.60/x
  3. Step 3: Cross multiply
    51,211.20x = 76,816.80 × 50,433.60
  4. Step 4: Simplify right side
    51,211.20x = 3,874,147,764.48
  5. Step 5: Solve for x
    x = 3,874,147,764.48/51,211.20
  6. Step 6: Final answer
    x = 75,650.40

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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.