Home / 56,961.22-85,453.84-21,422.86

Finding the Fourth Proportional to 56,961.22, 85,453.84 and 21,422.86

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Solution

The fourth proportional to 56,961.22, 85,453.84 and 21,422.86 is: 32,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,961.22 : 85,453.84 = 21,422.86 : x
  2. Step 2: Convert to fraction form
    56,961.22/85,453.84 = 21,422.86/x
  3. Step 3: Cross multiply
    56,961.22x = 85,453.84 × 21,422.86
  4. Step 4: Simplify right side
    56,961.22x = 1,830,665,650.78
  5. Step 5: Solve for x
    x = 1,830,665,650.78/56,961.22
  6. Step 6: Final answer
    x = 32,138.81

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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.