Home / 81,453.45-122,163.75-22,295.10

Finding the Fourth Proportional to 81,453.45, 122,163.75 and 22,295.10

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Solution

The fourth proportional to 81,453.45, 122,163.75 and 22,295.10 is: 33,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,453.45 : 122,163.75 = 22,295.10 : x
  2. Step 2: Convert to fraction form
    81,453.45/122,163.75 = 22,295.10/x
  3. Step 3: Cross multiply
    81,453.45x = 122,163.75 × 22,295.10
  4. Step 4: Simplify right side
    81,453.45x = 2,723,653,022.63
  5. Step 5: Solve for x
    x = 2,723,653,022.63/81,453.45
  6. Step 6: Final answer
    x = 33,438.15

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1.5x scale

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.