Home / 53,427.20-80,043.60-43,512.80

Finding the Fourth Proportional to 53,427.20, 80,043.60 and 43,512.80

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Solution

The fourth proportional to 53,427.20, 80,043.60 and 43,512.80 is: 65,190.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,427.20 : 80,043.60 = 43,512.80 : x
  2. Step 2: Convert to fraction form
    53,427.20/80,043.60 = 43,512.80/x
  3. Step 3: Cross multiply
    53,427.20x = 80,043.60 × 43,512.80
  4. Step 4: Simplify right side
    53,427.20x = 3,482,921,158.08
  5. Step 5: Solve for x
    x = 3,482,921,158.08/53,427.20
  6. Step 6: Final answer
    x = 65,190.04

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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.