Home / 69,805.86-104,542.02-38,168.61

Finding the Fourth Proportional to 69,805.86, 104,542.02 and 38,168.61

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Solution

The fourth proportional to 69,805.86, 104,542.02 and 38,168.61 is: 57,161.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,805.86 : 104,542.02 = 38,168.61 : x
  2. Step 2: Convert to fraction form
    69,805.86/104,542.02 = 38,168.61/x
  3. Step 3: Cross multiply
    69,805.86x = 104,542.02 × 38,168.61
  4. Step 4: Simplify right side
    69,805.86x = 3,990,223,589.99
  5. Step 5: Solve for x
    x = 3,990,223,589.99/69,805.86
  6. Step 6: Final answer
    x = 57,161.73

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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.