Home / 52,120.82-78,181.25-12,677.69

Finding the Fourth Proportional to 52,120.82, 78,181.25 and 12,677.69

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Solution

The fourth proportional to 52,120.82, 78,181.25 and 12,677.69 is: 19,016.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,120.82 : 78,181.25 = 12,677.69 : x
  2. Step 2: Convert to fraction form
    52,120.82/78,181.25 = 12,677.69/x
  3. Step 3: Cross multiply
    52,120.82x = 78,181.25 × 12,677.69
  4. Step 4: Simplify right side
    52,120.82x = 991,157,651.31
  5. Step 5: Solve for x
    x = 991,157,651.31/52,120.82
  6. Step 6: Final answer
    x = 19,016.54

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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.