Home / 56,961.20-85,344.60-47,046.80

Finding the Fourth Proportional to 56,961.20, 85,344.60 and 47,046.80

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Solution

The fourth proportional to 56,961.20, 85,344.60 and 47,046.80 is: 70,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,961.20 : 85,344.60 = 47,046.80 : x
  2. Step 2: Convert to fraction form
    56,961.20/85,344.60 = 47,046.80/x
  3. Step 3: Cross multiply
    56,961.20x = 85,344.60 × 47,046.80
  4. Step 4: Simplify right side
    56,961.20x = 4,015,190,327.28
  5. Step 5: Solve for x
    x = 4,015,190,327.28/56,961.20
  6. Step 6: Final answer
    x = 70,489.92

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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.