Home / 57,183.08-78,910.37-31,690.54

Finding the Fourth Proportional to 57,183.08, 78,910.37 and 31,690.54

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Solution

The fourth proportional to 57,183.08, 78,910.37 and 31,690.54 is: 43,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,183.08 : 78,910.37 = 31,690.54 : x
  2. Step 2: Convert to fraction form
    57,183.08/78,910.37 = 31,690.54/x
  3. Step 3: Cross multiply
    57,183.08x = 78,910.37 × 31,690.54
  4. Step 4: Simplify right side
    57,183.08x = 2,500,711,842.35
  5. Step 5: Solve for x
    x = 2,500,711,842.35/57,183.08
  6. Step 6: Final answer
    x = 43,731.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.