Home / 86,761.68-119,743.96-54,933.54

Finding the Fourth Proportional to 86,761.68, 119,743.96 and 54,933.54

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Solution

The fourth proportional to 86,761.68, 119,743.96 and 54,933.54 is: 75,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,761.68 : 119,743.96 = 54,933.54 : x
  2. Step 2: Convert to fraction form
    86,761.68/119,743.96 = 54,933.54/x
  3. Step 3: Cross multiply
    86,761.68x = 119,743.96 × 54,933.54
  4. Step 4: Simplify right side
    86,761.68x = 6,577,959,616.42
  5. Step 5: Solve for x
    x = 6,577,959,616.42/86,761.68
  6. Step 6: Final answer
    x = 75,816.42

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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.