Home / 81,716.94-122,464.68-42,301.73

Finding the Fourth Proportional to 81,716.94, 122,464.68 and 42,301.73

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Solution

The fourth proportional to 81,716.94, 122,464.68 and 42,301.73 is: 63,395.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,716.94 : 122,464.68 = 42,301.73 : x
  2. Step 2: Convert to fraction form
    81,716.94/122,464.68 = 42,301.73/x
  3. Step 3: Cross multiply
    81,716.94x = 122,464.68 × 42,301.73
  4. Step 4: Simplify right side
    81,716.94x = 5,180,467,215.57
  5. Step 5: Solve for x
    x = 5,180,467,215.57/81,716.94
  6. Step 6: Final answer
    x = 63,395.27

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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.