Home / 75,912.30-113,872.62-31,543.54

Finding the Fourth Proportional to 75,912.30, 113,872.62 and 31,543.54

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Solution

The fourth proportional to 75,912.30, 113,872.62 and 31,543.54 is: 47,317.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,912.30 : 113,872.62 = 31,543.54 : x
  2. Step 2: Convert to fraction form
    75,912.30/113,872.62 = 31,543.54/x
  3. Step 3: Cross multiply
    75,912.30x = 113,872.62 × 31,543.54
  4. Step 4: Simplify right side
    75,912.30x = 3,591,945,543.87
  5. Step 5: Solve for x
    x = 3,591,945,543.87/75,912.30
  6. Step 6: Final answer
    x = 47,317.04

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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.