Home / 52,167.20-78,231.14-18,879.04

Finding the Fourth Proportional to 52,167.20, 78,231.14 and 18,879.04

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Solution

The fourth proportional to 52,167.20, 78,231.14 and 18,879.04 is: 28,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,167.20 : 78,231.14 = 18,879.04 : x
  2. Step 2: Convert to fraction form
    52,167.20/78,231.14 = 18,879.04/x
  3. Step 3: Cross multiply
    52,167.20x = 78,231.14 × 18,879.04
  4. Step 4: Simplify right side
    52,167.20x = 1,476,928,821.31
  5. Step 5: Solve for x
    x = 1,476,928,821.31/52,167.20
  6. Step 6: Final answer
    x = 28,311.45

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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.