Home / 56,722.20-85,131.90-25,180.80

Finding the Fourth Proportional to 56,722.20, 85,131.90 and 25,180.80

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Solution

The fourth proportional to 56,722.20, 85,131.90 and 25,180.80 is: 37,792.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,722.20 : 85,131.90 = 25,180.80 : x
  2. Step 2: Convert to fraction form
    56,722.20/85,131.90 = 25,180.80/x
  3. Step 3: Cross multiply
    56,722.20x = 85,131.90 × 25,180.80
  4. Step 4: Simplify right side
    56,722.20x = 2,143,689,347.52
  5. Step 5: Solve for x
    x = 2,143,689,347.52/56,722.20
  6. Step 6: Final answer
    x = 37,792.78

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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.