Home / 50,187.79-69,289.19-31,350.43

Finding the Fourth Proportional to 50,187.79, 69,289.19 and 31,350.43

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Solution

The fourth proportional to 50,187.79, 69,289.19 and 31,350.43 is: 43,282.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,187.79 : 69,289.19 = 31,350.43 : x
  2. Step 2: Convert to fraction form
    50,187.79/69,289.19 = 31,350.43/x
  3. Step 3: Cross multiply
    50,187.79x = 69,289.19 × 31,350.43
  4. Step 4: Simplify right side
    50,187.79x = 2,172,245,900.85
  5. Step 5: Solve for x
    x = 2,172,245,900.85/50,187.79
  6. Step 6: Final answer
    x = 43,282.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.