Home / 70,821.39-106,193.26-28,083.54

Finding the Fourth Proportional to 70,821.39, 106,193.26 and 28,083.54

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Solution

The fourth proportional to 70,821.39, 106,193.26 and 28,083.54 is: 42,109.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,821.39 : 106,193.26 = 28,083.54 : x
  2. Step 2: Convert to fraction form
    70,821.39/106,193.26 = 28,083.54/x
  3. Step 3: Cross multiply
    70,821.39x = 106,193.26 × 28,083.54
  4. Step 4: Simplify right side
    70,821.39x = 2,982,282,594.73
  5. Step 5: Solve for x
    x = 2,982,282,594.73/70,821.39
  6. Step 6: Final answer
    x = 42,109.91

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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.