Home / 82,075.70-123,122.46-25,917.32

Finding the Fourth Proportional to 82,075.70, 123,122.46 and 25,917.32

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Solution

The fourth proportional to 82,075.70, 123,122.46 and 25,917.32 is: 38,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,075.70 : 123,122.46 = 25,917.32 : x
  2. Step 2: Convert to fraction form
    82,075.70/123,122.46 = 25,917.32/x
  3. Step 3: Cross multiply
    82,075.70x = 123,122.46 × 25,917.32
  4. Step 4: Simplify right side
    82,075.70x = 3,191,004,195.01
  5. Step 5: Solve for x
    x = 3,191,004,195.01/82,075.70
  6. Step 6: Final answer
    x = 38,878.79

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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.