Home / 81,680.74-122,529.58-22,516.42

Finding the Fourth Proportional to 81,680.74, 122,529.58 and 22,516.42

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Solution

The fourth proportional to 81,680.74, 122,529.58 and 22,516.42 is: 33,776.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,680.74 : 122,529.58 = 22,516.42 : x
  2. Step 2: Convert to fraction form
    81,680.74/122,529.58 = 22,516.42/x
  3. Step 3: Cross multiply
    81,680.74x = 122,529.58 × 22,516.42
  4. Step 4: Simplify right side
    81,680.74x = 2,758,927,485.70
  5. Step 5: Solve for x
    x = 2,758,927,485.70/81,680.74
  6. Step 6: Final answer
    x = 33,776.96

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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.