Home / 50,805.52-76,171.36-21,231.81

Finding the Fourth Proportional to 50,805.52, 76,171.36 and 21,231.81

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Solution

The fourth proportional to 50,805.52, 76,171.36 and 21,231.81 is: 31,832.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,805.52 : 76,171.36 = 21,231.81 : x
  2. Step 2: Convert to fraction form
    50,805.52/76,171.36 = 21,231.81/x
  3. Step 3: Cross multiply
    50,805.52x = 76,171.36 × 21,231.81
  4. Step 4: Simplify right side
    50,805.52x = 1,617,255,842.96
  5. Step 5: Solve for x
    x = 1,617,255,842.96/50,805.52
  6. Step 6: Final answer
    x = 31,832.29

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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.