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Finding the Fourth Proportional to 40,321.20, 60,481.80 and 35,866.80

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Solution

The fourth proportional to 40,321.20, 60,481.80 and 35,866.80 is: 53,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,321.20 : 60,481.80 = 35,866.80 : x
  2. Step 2: Convert to fraction form
    40,321.20/60,481.80 = 35,866.80/x
  3. Step 3: Cross multiply
    40,321.20x = 60,481.80 × 35,866.80
  4. Step 4: Simplify right side
    40,321.20x = 2,169,288,624.24
  5. Step 5: Solve for x
    x = 2,169,288,624.24/40,321.20
  6. Step 6: Final answer
    x = 53,800.20

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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.