Home / 81,219.15-121,840.17-25,063.83

Finding the Fourth Proportional to 81,219.15, 121,840.17 and 25,063.83

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Solution

The fourth proportional to 81,219.15, 121,840.17 and 25,063.83 is: 37,599.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,219.15 : 121,840.17 = 25,063.83 : x
  2. Step 2: Convert to fraction form
    81,219.15/121,840.17 = 25,063.83/x
  3. Step 3: Cross multiply
    81,219.15x = 121,840.17 × 25,063.83
  4. Step 4: Simplify right side
    81,219.15x = 3,053,780,698.85
  5. Step 5: Solve for x
    x = 3,053,780,698.85/81,219.15
  6. Step 6: Final answer
    x = 37,599.27

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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.