Home / 81,933.68-122,955.24-35,197.76

Finding the Fourth Proportional to 81,933.68, 122,955.24 and 35,197.76

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Solution

The fourth proportional to 81,933.68, 122,955.24 and 35,197.76 is: 52,820.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,933.68 : 122,955.24 = 35,197.76 : x
  2. Step 2: Convert to fraction form
    81,933.68/122,955.24 = 35,197.76/x
  3. Step 3: Cross multiply
    81,933.68x = 122,955.24 × 35,197.76
  4. Step 4: Simplify right side
    81,933.68x = 4,327,749,028.26
  5. Step 5: Solve for x
    x = 4,327,749,028.26/81,933.68
  6. Step 6: Final answer
    x = 52,820.15

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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.