Home / 53,402.22-80,103.33-20,129.75

Finding the Fourth Proportional to 53,402.22, 80,103.33 and 20,129.75

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Solution

The fourth proportional to 53,402.22, 80,103.33 and 20,129.75 is: 30,194.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,402.22 : 80,103.33 = 20,129.75 : x
  2. Step 2: Convert to fraction form
    53,402.22/80,103.33 = 20,129.75/x
  3. Step 3: Cross multiply
    53,402.22x = 80,103.33 × 20,129.75
  4. Step 4: Simplify right side
    53,402.22x = 1,612,460,007.07
  5. Step 5: Solve for x
    x = 1,612,460,007.07/53,402.22
  6. Step 6: Final answer
    x = 30,194.63

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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.