Home / 56,832.20-85,286.70-31,872.20

Finding the Fourth Proportional to 56,832.20, 85,286.70 and 31,872.20

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Solution

The fourth proportional to 56,832.20, 85,286.70 and 31,872.20 is: 47,829.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,832.20 : 85,286.70 = 31,872.20 : x
  2. Step 2: Convert to fraction form
    56,832.20/85,286.70 = 31,872.20/x
  3. Step 3: Cross multiply
    56,832.20x = 85,286.70 × 31,872.20
  4. Step 4: Simplify right side
    56,832.20x = 2,718,274,759.74
  5. Step 5: Solve for x
    x = 2,718,274,759.74/56,832.20
  6. Step 6: Final answer
    x = 47,829.84

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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.