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Finding the Fourth Proportional to 53,489.64, 80,234.22 and 21,914.34

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Solution

The fourth proportional to 53,489.64, 80,234.22 and 21,914.34 is: 32,871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,489.64 : 80,234.22 = 21,914.34 : x
  2. Step 2: Convert to fraction form
    53,489.64/80,234.22 = 21,914.34/x
  3. Step 3: Cross multiply
    53,489.64x = 80,234.22 × 21,914.34
  4. Step 4: Simplify right side
    53,489.64x = 1,758,279,976.71
  5. Step 5: Solve for x
    x = 1,758,279,976.71/53,489.64
  6. Step 6: Final answer
    x = 32,871.41

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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.