Home / 80,181.20-120,110.52-45,068.24

Finding the Fourth Proportional to 80,181.20, 120,110.52 and 45,068.24

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Solution

The fourth proportional to 80,181.20, 120,110.52 and 45,068.24 is: 67,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,181.20 : 120,110.52 = 45,068.24 : x
  2. Step 2: Convert to fraction form
    80,181.20/120,110.52 = 45,068.24/x
  3. Step 3: Cross multiply
    80,181.20x = 120,110.52 × 45,068.24
  4. Step 4: Simplify right side
    80,181.20x = 5,413,169,741.88
  5. Step 5: Solve for x
    x = 5,413,169,741.88/80,181.20
  6. Step 6: Final answer
    x = 67,511.71

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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.