Home / 81,453.90-122,226.74-63,634.56

Finding the Fourth Proportional to 81,453.90, 122,226.74 and 63,634.56

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Solution

The fourth proportional to 81,453.90, 122,226.74 and 63,634.56 is: 95,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,453.90 : 122,226.74 = 63,634.56 : x
  2. Step 2: Convert to fraction form
    81,453.90/122,226.74 = 63,634.56/x
  3. Step 3: Cross multiply
    81,453.90x = 122,226.74 × 63,634.56
  4. Step 4: Simplify right side
    81,453.90x = 7,777,844,501.96
  5. Step 5: Solve for x
    x = 7,777,844,501.96/81,453.90
  6. Step 6: Final answer
    x = 95,487.69

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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.