Home / 82,436.66-123,664.80-26,257.04

Finding the Fourth Proportional to 82,436.66, 123,664.80 and 26,257.04

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Solution

The fourth proportional to 82,436.66, 123,664.80 and 26,257.04 is: 39,388.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,436.66 : 123,664.80 = 26,257.04 : x
  2. Step 2: Convert to fraction form
    82,436.66/123,664.80 = 26,257.04/x
  3. Step 3: Cross multiply
    82,436.66x = 123,664.80 × 26,257.04
  4. Step 4: Simplify right side
    82,436.66x = 3,247,071,600.19
  5. Step 5: Solve for x
    x = 3,247,071,600.19/82,436.66
  6. Step 6: Final answer
    x = 39,388.68

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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.