Home / 53,665.20-80,400.60-43,750.80

Finding the Fourth Proportional to 53,665.20, 80,400.60 and 43,750.80

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Solution

The fourth proportional to 53,665.20, 80,400.60 and 43,750.80 is: 65,546.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,665.20 : 80,400.60 = 43,750.80 : x
  2. Step 2: Convert to fraction form
    53,665.20/80,400.60 = 43,750.80/x
  3. Step 3: Cross multiply
    53,665.20x = 80,400.60 × 43,750.80
  4. Step 4: Simplify right side
    53,665.20x = 3,517,590,570.48
  5. Step 5: Solve for x
    x = 3,517,590,570.48/53,665.20
  6. Step 6: Final answer
    x = 65,546.96

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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.