Home / 81,521.26-122,279.01-22,355.98

Finding the Fourth Proportional to 81,521.26, 122,279.01 and 22,355.98

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Solution

The fourth proportional to 81,521.26, 122,279.01 and 22,355.98 is: 33,533.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,521.26 : 122,279.01 = 22,355.98 : x
  2. Step 2: Convert to fraction form
    81,521.26/122,279.01 = 22,355.98/x
  3. Step 3: Cross multiply
    81,521.26x = 122,279.01 × 22,355.98
  4. Step 4: Simplify right side
    81,521.26x = 2,733,667,101.98
  5. Step 5: Solve for x
    x = 2,733,667,101.98/81,521.26
  6. Step 6: Final answer
    x = 33,533.18

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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.