Home / 71,879.32-107,835.38-21,966.51

Finding the Fourth Proportional to 71,879.32, 107,835.38 and 21,966.51

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Solution

The fourth proportional to 71,879.32, 107,835.38 and 21,966.51 is: 32,954.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,879.32 : 107,835.38 = 21,966.51 : x
  2. Step 2: Convert to fraction form
    71,879.32/107,835.38 = 21,966.51/x
  3. Step 3: Cross multiply
    71,879.32x = 107,835.38 × 21,966.51
  4. Step 4: Simplify right side
    71,879.32x = 2,368,766,953.12
  5. Step 5: Solve for x
    x = 2,368,766,953.12/71,879.32
  6. Step 6: Final answer
    x = 32,954.78

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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.