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Finding the Fourth Proportional to 57,480.86, 86,221.13 and 18,040.92

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Solution

The fourth proportional to 57,480.86, 86,221.13 and 18,040.92 is: 27,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,480.86 : 86,221.13 = 18,040.92 : x
  2. Step 2: Convert to fraction form
    57,480.86/86,221.13 = 18,040.92/x
  3. Step 3: Cross multiply
    57,480.86x = 86,221.13 × 18,040.92
  4. Step 4: Simplify right side
    57,480.86x = 1,555,508,418.44
  5. Step 5: Solve for x
    x = 1,555,508,418.44/57,480.86
  6. Step 6: Final answer
    x = 27,061.33

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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.