Home / 42,361.20-63,500.49-20,168.61

Finding the Fourth Proportional to 42,361.20, 63,500.49 and 20,168.61

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Solution

The fourth proportional to 42,361.20, 63,500.49 and 20,168.61 is: 30,233.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,361.20 : 63,500.49 = 20,168.61 : x
  2. Step 2: Convert to fraction form
    42,361.20/63,500.49 = 20,168.61/x
  3. Step 3: Cross multiply
    42,361.20x = 63,500.49 × 20,168.61
  4. Step 4: Simplify right side
    42,361.20x = 1,280,716,617.62
  5. Step 5: Solve for x
    x = 1,280,716,617.62/42,361.20
  6. Step 6: Final answer
    x = 30,233.25

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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.