Home / 49,693.15-74,539.61-20,131.75

Finding the Fourth Proportional to 49,693.15, 74,539.61 and 20,131.75

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Solution

The fourth proportional to 49,693.15, 74,539.61 and 20,131.75 is: 30,197.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,693.15 : 74,539.61 = 20,131.75 : x
  2. Step 2: Convert to fraction form
    49,693.15/74,539.61 = 20,131.75/x
  3. Step 3: Cross multiply
    49,693.15x = 74,539.61 × 20,131.75
  4. Step 4: Simplify right side
    49,693.15x = 1,500,612,793.62
  5. Step 5: Solve for x
    x = 1,500,612,793.62/49,693.15
  6. Step 6: Final answer
    x = 30,197.58

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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.