Home / 50,972.16-76,454.46-21,388.80

Finding the Fourth Proportional to 50,972.16, 76,454.46 and 21,388.80

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Solution

The fourth proportional to 50,972.16, 76,454.46 and 21,388.80 is: 32,081.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,972.16 : 76,454.46 = 21,388.80 : x
  2. Step 2: Convert to fraction form
    50,972.16/76,454.46 = 21,388.80/x
  3. Step 3: Cross multiply
    50,972.16x = 76,454.46 × 21,388.80
  4. Step 4: Simplify right side
    50,972.16x = 1,635,269,154.05
  5. Step 5: Solve for x
    x = 1,635,269,154.05/50,972.16
  6. Step 6: Final answer
    x = 32,081.61

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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.