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Finding the Fourth Proportional to 53,902.80, 80,832.60 and 18,824.40

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Solution

The fourth proportional to 53,902.80, 80,832.60 and 18,824.40 is: 28,229.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,902.80 : 80,832.60 = 18,824.40 : x
  2. Step 2: Convert to fraction form
    53,902.80/80,832.60 = 18,824.40/x
  3. Step 3: Cross multiply
    53,902.80x = 80,832.60 × 18,824.40
  4. Step 4: Simplify right side
    53,902.80x = 1,521,625,195.44
  5. Step 5: Solve for x
    x = 1,521,625,195.44/53,902.80
  6. Step 6: Final answer
    x = 28,229.06

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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.