Home / 80,577.20-111,212.44-51,486.96

Finding the Fourth Proportional to 80,577.20, 111,212.44 and 51,486.96

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Solution

The fourth proportional to 80,577.20, 111,212.44 and 51,486.96 is: 71,062.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,577.20 : 111,212.44 = 51,486.96 : x
  2. Step 2: Convert to fraction form
    80,577.20/111,212.44 = 51,486.96/x
  3. Step 3: Cross multiply
    80,577.20x = 111,212.44 × 51,486.96
  4. Step 4: Simplify right side
    80,577.20x = 5,725,990,449.78
  5. Step 5: Solve for x
    x = 5,725,990,449.78/80,577.20
  6. Step 6: Final answer
    x = 71,062.17

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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.