Home / 50,939.20-76,408.80-21,349.12

Finding the Fourth Proportional to 50,939.20, 76,408.80 and 21,349.12

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Solution

The fourth proportional to 50,939.20, 76,408.80 and 21,349.12 is: 32,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,939.20 : 76,408.80 = 21,349.12 : x
  2. Step 2: Convert to fraction form
    50,939.20/76,408.80 = 21,349.12/x
  3. Step 3: Cross multiply
    50,939.20x = 76,408.80 × 21,349.12
  4. Step 4: Simplify right side
    50,939.20x = 1,631,260,640.26
  5. Step 5: Solve for x
    x = 1,631,260,640.26/50,939.20
  6. Step 6: Final answer
    x = 32,023.68

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1.5x scale

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.