Home / 52,092.56-78,085.17-20,489.79

Finding the Fourth Proportional to 52,092.56, 78,085.17 and 20,489.79

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Solution

The fourth proportional to 52,092.56, 78,085.17 and 20,489.79 is: 30,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,092.56 : 78,085.17 = 20,489.79 : x
  2. Step 2: Convert to fraction form
    52,092.56/78,085.17 = 20,489.79/x
  3. Step 3: Cross multiply
    52,092.56x = 78,085.17 × 20,489.79
  4. Step 4: Simplify right side
    52,092.56x = 1,599,948,735.41
  5. Step 5: Solve for x
    x = 1,599,948,735.41/52,092.56
  6. Step 6: Final answer
    x = 30,713.58

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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.