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Finding the Fourth Proportional to 53,469.81, 80,203.77 and 18,408.69

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Solution

The fourth proportional to 53,469.81, 80,203.77 and 18,408.69 is: 27,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,469.81 : 80,203.77 = 18,408.69 : x
  2. Step 2: Convert to fraction form
    53,469.81/80,203.77 = 18,408.69/x
  3. Step 3: Cross multiply
    53,469.81x = 80,203.77 × 18,408.69
  4. Step 4: Simplify right side
    53,469.81x = 1,476,446,338.76
  5. Step 5: Solve for x
    x = 1,476,446,338.76/53,469.81
  6. Step 6: Final answer
    x = 27,612.71

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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.