Home / 81,977.56-122,942.02-35,219.52

Finding the Fourth Proportional to 81,977.56, 122,942.02 and 35,219.52

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Solution

The fourth proportional to 81,977.56, 122,942.02 and 35,219.52 is: 52,818.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,977.56 : 122,942.02 = 35,219.52 : x
  2. Step 2: Convert to fraction form
    81,977.56/122,942.02 = 35,219.52/x
  3. Step 3: Cross multiply
    81,977.56x = 122,942.02 × 35,219.52
  4. Step 4: Simplify right side
    81,977.56x = 4,329,958,932.23
  5. Step 5: Solve for x
    x = 4,329,958,932.23/81,977.56
  6. Step 6: Final answer
    x = 52,818.83

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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.