Home / 40,122.15-60,163.78-20,123.04

Finding the Fourth Proportional to 40,122.15, 60,163.78 and 20,123.04

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Solution

The fourth proportional to 40,122.15, 60,163.78 and 20,123.04 is: 30,174.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.15 : 60,163.78 = 20,123.04 : x
  2. Step 2: Convert to fraction form
    40,122.15/60,163.78 = 20,123.04/x
  3. Step 3: Cross multiply
    40,122.15x = 60,163.78 × 20,123.04
  4. Step 4: Simplify right side
    40,122.15x = 1,210,678,251.59
  5. Step 5: Solve for x
    x = 1,210,678,251.59/40,122.15
  6. Step 6: Final answer
    x = 30,174.81

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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.