Home / 42,797.20-64,074.30-40,469.80

Finding the Fourth Proportional to 42,797.20, 64,074.30 and 40,469.80

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Solution

The fourth proportional to 42,797.20, 64,074.30 and 40,469.80 is: 60,589.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,797.20 : 64,074.30 = 40,469.80 : x
  2. Step 2: Convert to fraction form
    42,797.20/64,074.30 = 40,469.80/x
  3. Step 3: Cross multiply
    42,797.20x = 64,074.30 × 40,469.80
  4. Step 4: Simplify right side
    42,797.20x = 2,593,074,106.14
  5. Step 5: Solve for x
    x = 2,593,074,106.14/42,797.20
  6. Step 6: Final answer
    x = 60,589.81

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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.