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Finding the Fourth Proportional to 53,861.43, 80,829.03 and 18,801.09

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Solution

The fourth proportional to 53,861.43, 80,829.03 and 18,801.09 is: 28,214.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,861.43 : 80,829.03 = 18,801.09 : x
  2. Step 2: Convert to fraction form
    53,861.43/80,829.03 = 18,801.09/x
  3. Step 3: Cross multiply
    53,861.43x = 80,829.03 × 18,801.09
  4. Step 4: Simplify right side
    53,861.43x = 1,519,673,867.64
  5. Step 5: Solve for x
    x = 1,519,673,867.64/53,861.43
  6. Step 6: Final answer
    x = 28,214.51

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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.