Home / 71,917.20-107,876.28-21,998.16

Finding the Fourth Proportional to 71,917.20, 107,876.28 and 21,998.16

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Solution

The fourth proportional to 71,917.20, 107,876.28 and 21,998.16 is: 32,997.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,917.20 : 107,876.28 = 21,998.16 : x
  2. Step 2: Convert to fraction form
    71,917.20/107,876.28 = 21,998.16/x
  3. Step 3: Cross multiply
    71,917.20x = 107,876.28 × 21,998.16
  4. Step 4: Simplify right side
    71,917.20x = 2,373,079,667.64
  5. Step 5: Solve for x
    x = 2,373,079,667.64/71,917.20
  6. Step 6: Final answer
    x = 32,997.39

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1.5x scale

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.