Home / 72,592.20-108,836.82-28,181.52

Finding the Fourth Proportional to 72,592.20, 108,836.82 and 28,181.52

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Solution

The fourth proportional to 72,592.20, 108,836.82 and 28,181.52 is: 42,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592.20 : 108,836.82 = 28,181.52 : x
  2. Step 2: Convert to fraction form
    72,592.20/108,836.82 = 28,181.52/x
  3. Step 3: Cross multiply
    72,592.20x = 108,836.82 × 28,181.52
  4. Step 4: Simplify right side
    72,592.20x = 3,067,187,019.57
  5. Step 5: Solve for x
    x = 3,067,187,019.57/72,592.20
  6. Step 6: Final answer
    x = 42,252.29

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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.