Home / 82,513.24-123,677.70-75,870.52

Finding the Fourth Proportional to 82,513.24, 123,677.70 and 75,870.52

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Solution

The fourth proportional to 82,513.24, 123,677.70 and 75,870.52 is: 113,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,513.24 : 123,677.70 = 75,870.52 : x
  2. Step 2: Convert to fraction form
    82,513.24/123,677.70 = 75,870.52/x
  3. Step 3: Cross multiply
    82,513.24x = 123,677.70 × 75,870.52
  4. Step 4: Simplify right side
    82,513.24x = 9,383,491,411.40
  5. Step 5: Solve for x
    x = 9,383,491,411.40/82,513.24
  6. Step 6: Final answer
    x = 113,721.04

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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.