Home / 81,597.09-122,311.43-34,239.68

Finding the Fourth Proportional to 81,597.09, 122,311.43 and 34,239.68

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Solution

The fourth proportional to 81,597.09, 122,311.43 and 34,239.68 is: 51,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,597.09 : 122,311.43 = 34,239.68 : x
  2. Step 2: Convert to fraction form
    81,597.09/122,311.43 = 34,239.68/x
  3. Step 3: Cross multiply
    81,597.09x = 122,311.43 × 34,239.68
  4. Step 4: Simplify right side
    81,597.09x = 4,187,904,052.34
  5. Step 5: Solve for x
    x = 4,187,904,052.34/81,597.09
  6. Step 6: Final answer
    x = 51,324.18

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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.