Home / 53,500.57-80,207.07-20,201.74

Finding the Fourth Proportional to 53,500.57, 80,207.07 and 20,201.74

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Solution

The fourth proportional to 53,500.57, 80,207.07 and 20,201.74 is: 30,286.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,500.57 : 80,207.07 = 20,201.74 : x
  2. Step 2: Convert to fraction form
    53,500.57/80,207.07 = 20,201.74/x
  3. Step 3: Cross multiply
    53,500.57x = 80,207.07 × 20,201.74
  4. Step 4: Simplify right side
    53,500.57x = 1,620,322,374.30
  5. Step 5: Solve for x
    x = 1,620,322,374.30/53,500.57
  6. Step 6: Final answer
    x = 30,286.08

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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.