Home / 50,782.85-76,181.36-21,193.90

Finding the Fourth Proportional to 50,782.85, 76,181.36 and 21,193.90

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Solution

The fourth proportional to 50,782.85, 76,181.36 and 21,193.90 is: 31,793.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,782.85 : 76,181.36 = 21,193.90 : x
  2. Step 2: Convert to fraction form
    50,782.85/76,181.36 = 21,193.90/x
  3. Step 3: Cross multiply
    50,782.85x = 76,181.36 × 21,193.90
  4. Step 4: Simplify right side
    50,782.85x = 1,614,580,125.70
  5. Step 5: Solve for x
    x = 1,614,580,125.70/50,782.85
  6. Step 6: Final answer
    x = 31,793.81

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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.