Home / 79,879.32-119,556.36-71,131.32

Finding the Fourth Proportional to 79,879.32, 119,556.36 and 71,131.32

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Solution

The fourth proportional to 79,879.32, 119,556.36 and 71,131.32 is: 106,463.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,879.32 : 119,556.36 = 71,131.32 : x
  2. Step 2: Convert to fraction form
    79,879.32/119,556.36 = 71,131.32/x
  3. Step 3: Cross multiply
    79,879.32x = 119,556.36 × 71,131.32
  4. Step 4: Simplify right side
    79,879.32x = 8,504,201,701.20
  5. Step 5: Solve for x
    x = 8,504,201,701.20/79,879.32
  6. Step 6: Final answer
    x = 106,463.12

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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.