Home / 81,976.34-122,964.60-22,812.14

Finding the Fourth Proportional to 81,976.34, 122,964.60 and 22,812.14

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Solution

The fourth proportional to 81,976.34, 122,964.60 and 22,812.14 is: 34,218.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,976.34 : 122,964.60 = 22,812.14 : x
  2. Step 2: Convert to fraction form
    81,976.34/122,964.60 = 22,812.14/x
  3. Step 3: Cross multiply
    81,976.34x = 122,964.60 × 22,812.14
  4. Step 4: Simplify right side
    81,976.34x = 2,805,085,670.24
  5. Step 5: Solve for x
    x = 2,805,085,670.24/81,976.34
  6. Step 6: Final answer
    x = 34,218.24

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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.