Home / 82,571.70-123,855.28-26,411.37

Finding the Fourth Proportional to 82,571.70, 123,855.28 and 26,411.37

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Solution

The fourth proportional to 82,571.70, 123,855.28 and 26,411.37 is: 39,616.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,571.70 : 123,855.28 = 26,411.37 : x
  2. Step 2: Convert to fraction form
    82,571.70/123,855.28 = 26,411.37/x
  3. Step 3: Cross multiply
    82,571.70x = 123,855.28 × 26,411.37
  4. Step 4: Simplify right side
    82,571.70x = 3,271,187,096.05
  5. Step 5: Solve for x
    x = 3,271,187,096.05/82,571.70
  6. Step 6: Final answer
    x = 39,616.32

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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.