Home / 81,500.37-122,277.18-39,385.29

Finding the Fourth Proportional to 81,500.37, 122,277.18 and 39,385.29

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Solution

The fourth proportional to 81,500.37, 122,277.18 and 39,385.29 is: 59,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,500.37 : 122,277.18 = 39,385.29 : x
  2. Step 2: Convert to fraction form
    81,500.37/122,277.18 = 39,385.29/x
  3. Step 3: Cross multiply
    81,500.37x = 122,277.18 × 39,385.29
  4. Step 4: Simplify right side
    81,500.37x = 4,815,922,194.68
  5. Step 5: Solve for x
    x = 4,815,922,194.68/81,500.37
  6. Step 6: Final answer
    x = 59,090.80

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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.