Home / 47,879.20-71,775.60-31,247.20

Finding the Fourth Proportional to 47,879.20, 71,775.60 and 31,247.20

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Solution

The fourth proportional to 47,879.20, 71,775.60 and 31,247.20 is: 46,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,879.20 : 71,775.60 = 31,247.20 : x
  2. Step 2: Convert to fraction form
    47,879.20/71,775.60 = 31,247.20/x
  3. Step 3: Cross multiply
    47,879.20x = 71,775.60 × 31,247.20
  4. Step 4: Simplify right side
    47,879.20x = 2,242,786,528.32
  5. Step 5: Solve for x
    x = 2,242,786,528.32/47,879.20
  6. Step 6: Final answer
    x = 46,842.61

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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.