Home / 53,455.20-80,085.60-43,540.80

Finding the Fourth Proportional to 53,455.20, 80,085.60 and 43,540.80

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Solution

The fourth proportional to 53,455.20, 80,085.60 and 43,540.80 is: 65,232.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,455.20 : 80,085.60 = 43,540.80 : x
  2. Step 2: Convert to fraction form
    53,455.20/80,085.60 = 43,540.80/x
  3. Step 3: Cross multiply
    53,455.20x = 80,085.60 × 43,540.80
  4. Step 4: Simplify right side
    53,455.20x = 3,486,991,092.48
  5. Step 5: Solve for x
    x = 3,486,991,092.48/53,455.20
  6. Step 6: Final answer
    x = 65,232.03

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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.