Home / 61,144.71-91,723.35-21,163.62

Finding the Fourth Proportional to 61,144.71, 91,723.35 and 21,163.62

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Solution

The fourth proportional to 61,144.71, 91,723.35 and 21,163.62 is: 31,747.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,144.71 : 91,723.35 = 21,163.62 : x
  2. Step 2: Convert to fraction form
    61,144.71/91,723.35 = 21,163.62/x
  3. Step 3: Cross multiply
    61,144.71x = 91,723.35 × 21,163.62
  4. Step 4: Simplify right side
    61,144.71x = 1,941,198,124.53
  5. Step 5: Solve for x
    x = 1,941,198,124.53/61,144.71
  6. Step 6: Final answer
    x = 31,747.61

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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.