Home / 81,942.69-122,914.85-22,782.98

Finding the Fourth Proportional to 81,942.69, 122,914.85 and 22,782.98

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Solution

The fourth proportional to 81,942.69, 122,914.85 and 22,782.98 is: 34,174.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,942.69 : 122,914.85 = 22,782.98 : x
  2. Step 2: Convert to fraction form
    81,942.69/122,914.85 = 22,782.98/x
  3. Step 3: Cross multiply
    81,942.69x = 122,914.85 × 22,782.98
  4. Step 4: Simplify right side
    81,942.69x = 2,800,365,840.76
  5. Step 5: Solve for x
    x = 2,800,365,840.76/81,942.69
  6. Step 6: Final answer
    x = 34,174.69

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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.