Home / 57,078.19-78,843.20-43,813.36

Finding the Fourth Proportional to 57,078.19, 78,843.20 and 43,813.36

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Solution

The fourth proportional to 57,078.19, 78,843.20 and 43,813.36 is: 60,520.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,078.19 : 78,843.20 = 43,813.36 : x
  2. Step 2: Convert to fraction form
    57,078.19/78,843.20 = 43,813.36/x
  3. Step 3: Cross multiply
    57,078.19x = 78,843.20 × 43,813.36
  4. Step 4: Simplify right side
    57,078.19x = 3,454,385,505.15
  5. Step 5: Solve for x
    x = 3,454,385,505.15/57,078.19
  6. Step 6: Final answer
    x = 60,520.24

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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.