Home / 82,281.12-123,396.12-29,683.77

Finding the Fourth Proportional to 82,281.12, 123,396.12 and 29,683.77

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Solution

The fourth proportional to 82,281.12, 123,396.12 and 29,683.77 is: 44,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,281.12 : 123,396.12 = 29,683.77 : x
  2. Step 2: Convert to fraction form
    82,281.12/123,396.12 = 29,683.77/x
  3. Step 3: Cross multiply
    82,281.12x = 123,396.12 × 29,683.77
  4. Step 4: Simplify right side
    82,281.12x = 3,662,862,044.97
  5. Step 5: Solve for x
    x = 3,662,862,044.97/82,281.12
  6. Step 6: Final answer
    x = 44,516.43

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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.