Home / 215,724.48-323,687.04-82,560.84

Finding the Fourth Proportional to 215,724.48, 323,687.04 and 82,560.84

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Solution

The fourth proportional to 215,724.48, 323,687.04 and 82,560.84 is: 123,879.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,724.48 : 323,687.04 = 82,560.84 : x
  2. Step 2: Convert to fraction form
    215,724.48/323,687.04 = 82,560.84/x
  3. Step 3: Cross multiply
    215,724.48x = 323,687.04 × 82,560.84
  4. Step 4: Simplify right side
    215,724.48x = 26,723,873,919.51
  5. Step 5: Solve for x
    x = 26,723,873,919.51/215,724.48
  6. Step 6: Final answer
    x = 123,879.65

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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.