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Finding the Fourth Proportional to 53,601.80, 80,409.90 and 18,552.20

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Solution

The fourth proportional to 53,601.80, 80,409.90 and 18,552.20 is: 27,830.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,601.80 : 80,409.90 = 18,552.20 : x
  2. Step 2: Convert to fraction form
    53,601.80/80,409.90 = 18,552.20/x
  3. Step 3: Cross multiply
    53,601.80x = 80,409.90 × 18,552.20
  4. Step 4: Simplify right side
    53,601.80x = 1,491,780,546.78
  5. Step 5: Solve for x
    x = 1,491,780,546.78/53,601.80
  6. Step 6: Final answer
    x = 27,830.79

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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.