Home / 82,633.02-123,783.21-38,198.58

Finding the Fourth Proportional to 82,633.02, 123,783.21 and 38,198.58

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Solution

The fourth proportional to 82,633.02, 123,783.21 and 38,198.58 is: 57,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,633.02 : 123,783.21 = 38,198.58 : x
  2. Step 2: Convert to fraction form
    82,633.02/123,783.21 = 38,198.58/x
  3. Step 3: Cross multiply
    82,633.02x = 123,783.21 × 38,198.58
  4. Step 4: Simplify right side
    82,633.02x = 4,728,342,849.84
  5. Step 5: Solve for x
    x = 4,728,342,849.84/82,633.02
  6. Step 6: Final answer
    x = 57,220.99

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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.