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Finding the Fourth Proportional to 81,800.05, 122,702.81 and 22,630.77

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Solution

The fourth proportional to 81,800.05, 122,702.81 and 22,630.77 is: 33,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,800.05 : 122,702.81 = 22,630.77 : x
  2. Step 2: Convert to fraction form
    81,800.05/122,702.81 = 22,630.77/x
  3. Step 3: Cross multiply
    81,800.05x = 122,702.81 × 22,630.77
  4. Step 4: Simplify right side
    81,800.05x = 2,776,858,344.80
  5. Step 5: Solve for x
    x = 2,776,858,344.80/81,800.05
  6. Step 6: Final answer
    x = 33,946.90

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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.