Home / 81,770.24-122,655.06-22,605.80

Finding the Fourth Proportional to 81,770.24, 122,655.06 and 22,605.80

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Solution

The fourth proportional to 81,770.24, 122,655.06 and 22,605.80 is: 33,908.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,770.24 : 122,655.06 = 22,605.80 : x
  2. Step 2: Convert to fraction form
    81,770.24/122,655.06 = 22,605.80/x
  3. Step 3: Cross multiply
    81,770.24x = 122,655.06 × 22,605.80
  4. Step 4: Simplify right side
    81,770.24x = 2,772,715,755.35
  5. Step 5: Solve for x
    x = 2,772,715,755.35/81,770.24
  6. Step 6: Final answer
    x = 33,908.62

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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.