Home / 57,179.28-78,847.92-45,223.68

Finding the Fourth Proportional to 57,179.28, 78,847.92 and 45,223.68

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Solution

The fourth proportional to 57,179.28, 78,847.92 and 45,223.68 is: 62,361.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,179.28 : 78,847.92 = 45,223.68 : x
  2. Step 2: Convert to fraction form
    57,179.28/78,847.92 = 45,223.68/x
  3. Step 3: Cross multiply
    57,179.28x = 78,847.92 × 45,223.68
  4. Step 4: Simplify right side
    57,179.28x = 3,565,793,102.75
  5. Step 5: Solve for x
    x = 3,565,793,102.75/57,179.28
  6. Step 6: Final answer
    x = 62,361.63

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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.