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Finding the Fourth Proportional to 53,366.20, 80,027.70 and 18,287.80

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Solution

The fourth proportional to 53,366.20, 80,027.70 and 18,287.80 is: 27,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,366.20 : 80,027.70 = 18,287.80 : x
  2. Step 2: Convert to fraction form
    53,366.20/80,027.70 = 18,287.80/x
  3. Step 3: Cross multiply
    53,366.20x = 80,027.70 × 18,287.80
  4. Step 4: Simplify right side
    53,366.20x = 1,463,530,572.06
  5. Step 5: Solve for x
    x = 1,463,530,572.06/53,366.20
  6. Step 6: Final answer
    x = 27,424.30

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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.