Home / 40,415.28-55,785.68-32,855.56

Finding the Fourth Proportional to 40,415.28, 55,785.68 and 32,855.56

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Solution

The fourth proportional to 40,415.28, 55,785.68 and 32,855.56 is: 45,350.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,415.28 : 55,785.68 = 32,855.56 : x
  2. Step 2: Convert to fraction form
    40,415.28/55,785.68 = 32,855.56/x
  3. Step 3: Cross multiply
    40,415.28x = 55,785.68 × 32,855.56
  4. Step 4: Simplify right side
    40,415.28x = 1,832,869,756.38
  5. Step 5: Solve for x
    x = 1,832,869,756.38/40,415.28
  6. Step 6: Final answer
    x = 45,350.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.