Home / 81,984.66-122,976.98-22,821.87

Finding the Fourth Proportional to 81,984.66, 122,976.98 and 22,821.87

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Solution

The fourth proportional to 81,984.66, 122,976.98 and 22,821.87 is: 34,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,984.66 : 122,976.98 = 22,821.87 : x
  2. Step 2: Convert to fraction form
    81,984.66/122,976.98 = 22,821.87/x
  3. Step 3: Cross multiply
    81,984.66x = 122,976.98 × 22,821.87
  4. Step 4: Simplify right side
    81,984.66x = 2,806,564,519.82
  5. Step 5: Solve for x
    x = 2,806,564,519.82/81,984.66
  6. Step 6: Final answer
    x = 34,232.80

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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.