Home / 81,811.18-122,716.94-22,647.03

Finding the Fourth Proportional to 81,811.18, 122,716.94 and 22,647.03

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Solution

The fourth proportional to 81,811.18, 122,716.94 and 22,647.03 is: 33,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,811.18 : 122,716.94 = 22,647.03 : x
  2. Step 2: Convert to fraction form
    81,811.18/122,716.94 = 22,647.03/x
  3. Step 3: Cross multiply
    81,811.18x = 122,716.94 × 22,647.03
  4. Step 4: Simplify right side
    81,811.18x = 2,779,174,221.69
  5. Step 5: Solve for x
    x = 2,779,174,221.69/81,811.18
  6. Step 6: Final answer
    x = 33,970.59

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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.