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Finding the Fourth Proportional to 33,445.89, 50,168.93 and 8,485.90

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Solution

The fourth proportional to 33,445.89, 50,168.93 and 8,485.90 is: 12,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,445.89 : 50,168.93 = 8,485.90 : x
  2. Step 2: Convert to fraction form
    33,445.89/50,168.93 = 8,485.90/x
  3. Step 3: Cross multiply
    33,445.89x = 50,168.93 × 8,485.90
  4. Step 4: Simplify right side
    33,445.89x = 425,728,572.85
  5. Step 5: Solve for x
    x = 425,728,572.85/33,445.89
  6. Step 6: Final answer
    x = 12,728.87

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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.