Home / 81,735.15-122,650.11-34,346.51

Finding the Fourth Proportional to 81,735.15, 122,650.11 and 34,346.51

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Solution

The fourth proportional to 81,735.15, 122,650.11 and 34,346.51 is: 51,539.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,735.15 : 122,650.11 = 34,346.51 : x
  2. Step 2: Convert to fraction form
    81,735.15/122,650.11 = 34,346.51/x
  3. Step 3: Cross multiply
    81,735.15x = 122,650.11 × 34,346.51
  4. Step 4: Simplify right side
    81,735.15x = 4,212,603,229.62
  5. Step 5: Solve for x
    x = 4,212,603,229.62/81,735.15
  6. Step 6: Final answer
    x = 51,539.68

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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.