Home / 82,136.70-123,205.05-29,547.90

Finding the Fourth Proportional to 82,136.70, 123,205.05 and 29,547.90

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Solution

The fourth proportional to 82,136.70, 123,205.05 and 29,547.90 is: 44,321.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,136.70 : 123,205.05 = 29,547.90 : x
  2. Step 2: Convert to fraction form
    82,136.70/123,205.05 = 29,547.90/x
  3. Step 3: Cross multiply
    82,136.70x = 123,205.05 × 29,547.90
  4. Step 4: Simplify right side
    82,136.70x = 3,640,450,496.90
  5. Step 5: Solve for x
    x = 3,640,450,496.90/82,136.70
  6. Step 6: Final answer
    x = 44,321.85

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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.