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Finding the Fourth Proportional to 53,487.87, 80,250.09 and 20,217.52

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Solution

The fourth proportional to 53,487.87, 80,250.09 and 20,217.52 is: 30,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,487.87 : 80,250.09 = 20,217.52 : x
  2. Step 2: Convert to fraction form
    53,487.87/80,250.09 = 20,217.52/x
  3. Step 3: Cross multiply
    53,487.87x = 80,250.09 × 20,217.52
  4. Step 4: Simplify right side
    53,487.87x = 1,622,457,799.58
  5. Step 5: Solve for x
    x = 1,622,457,799.58/53,487.87
  6. Step 6: Final answer
    x = 30,333.19

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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.