Home / 83,279.74-124,921.23-30,662.14

Finding the Fourth Proportional to 83,279.74, 124,921.23 and 30,662.14

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Solution

The fourth proportional to 83,279.74, 124,921.23 and 30,662.14 is: 45,993.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,279.74 : 124,921.23 = 30,662.14 : x
  2. Step 2: Convert to fraction form
    83,279.74/124,921.23 = 30,662.14/x
  3. Step 3: Cross multiply
    83,279.74x = 124,921.23 × 30,662.14
  4. Step 4: Simplify right side
    83,279.74x = 3,830,352,243.23
  5. Step 5: Solve for x
    x = 3,830,352,243.23/83,279.74
  6. Step 6: Final answer
    x = 45,993.81

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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.