Home / 54,355.20-81,532.80-50,418.60

Finding the Fourth Proportional to 54,355.20, 81,532.80 and 50,418.60

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Solution

The fourth proportional to 54,355.20, 81,532.80 and 50,418.60 is: 75,627.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,355.20 : 81,532.80 = 50,418.60 : x
  2. Step 2: Convert to fraction form
    54,355.20/81,532.80 = 50,418.60/x
  3. Step 3: Cross multiply
    54,355.20x = 81,532.80 × 50,418.60
  4. Step 4: Simplify right side
    54,355.20x = 4,110,769,630.08
  5. Step 5: Solve for x
    x = 4,110,769,630.08/54,355.20
  6. Step 6: Final answer
    x = 75,627.90

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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.