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Finding the Fourth Proportional to 50,550.90, 69,757.64 and 30,403.90

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Solution

The fourth proportional to 50,550.90, 69,757.64 and 30,403.90 is: 41,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,550.90 : 69,757.64 = 30,403.90 : x
  2. Step 2: Convert to fraction form
    50,550.90/69,757.64 = 30,403.90/x
  3. Step 3: Cross multiply
    50,550.90x = 69,757.64 × 30,403.90
  4. Step 4: Simplify right side
    50,550.90x = 2,120,904,310.80
  5. Step 5: Solve for x
    x = 2,120,904,310.80/50,550.90
  6. Step 6: Final answer
    x = 41,955.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.