Home / 83,869.06-125,825.46-31,279

Finding the Fourth Proportional to 83,869.06, 125,825.46 and 31,279

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Solution

The fourth proportional to 83,869.06, 125,825.46 and 31,279 is: 46,926.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,869.06 : 125,825.46 = 31,279 : x
  2. Step 2: Convert to fraction form
    83,869.06/125,825.46 = 31,279/x
  3. Step 3: Cross multiply
    83,869.06x = 125,825.46 × 31,279
  4. Step 4: Simplify right side
    83,869.06x = 3,935,694,563.34
  5. Step 5: Solve for x
    x = 3,935,694,563.34/83,869.06
  6. Step 6: Final answer
    x = 46,926.66

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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.