Home / 53,906.08-80,884.23-20,615.18

Finding the Fourth Proportional to 53,906.08, 80,884.23 and 20,615.18

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Solution

The fourth proportional to 53,906.08, 80,884.23 and 20,615.18 is: 30,932.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,906.08 : 80,884.23 = 20,615.18 : x
  2. Step 2: Convert to fraction form
    53,906.08/80,884.23 = 20,615.18/x
  3. Step 3: Cross multiply
    53,906.08x = 80,884.23 × 20,615.18
  4. Step 4: Simplify right side
    53,906.08x = 1,667,442,960.61
  5. Step 5: Solve for x
    x = 1,667,442,960.61/53,906.08
  6. Step 6: Final answer
    x = 30,932.37

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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.