Home / 53,415.20-80,025.60-43,500.80

Finding the Fourth Proportional to 53,415.20, 80,025.60 and 43,500.80

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Solution

The fourth proportional to 53,415.20, 80,025.60 and 43,500.80 is: 65,172.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,415.20 : 80,025.60 = 43,500.80 : x
  2. Step 2: Convert to fraction form
    53,415.20/80,025.60 = 43,500.80/x
  3. Step 3: Cross multiply
    53,415.20x = 80,025.60 × 43,500.80
  4. Step 4: Simplify right side
    53,415.20x = 3,481,177,620.48
  5. Step 5: Solve for x
    x = 3,481,177,620.48/53,415.20
  6. Step 6: Final answer
    x = 65,172.04

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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.