Home / 81,533.68-122,287.40-22,355.62

Finding the Fourth Proportional to 81,533.68, 122,287.40 and 22,355.62

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Solution

The fourth proportional to 81,533.68, 122,287.40 and 22,355.62 is: 33,529.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,533.68 : 122,287.40 = 22,355.62 : x
  2. Step 2: Convert to fraction form
    81,533.68/122,287.40 = 22,355.62/x
  3. Step 3: Cross multiply
    81,533.68x = 122,287.40 × 22,355.62
  4. Step 4: Simplify right side
    81,533.68x = 2,733,810,033.75
  5. Step 5: Solve for x
    x = 2,733,810,033.75/81,533.68
  6. Step 6: Final answer
    x = 33,529.83

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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.