Home / 82,571.70-123,811.98-26,396.19

Finding the Fourth Proportional to 82,571.70, 123,811.98 and 26,396.19

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Solution

The fourth proportional to 82,571.70, 123,811.98 and 26,396.19 is: 39,579.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,571.70 : 123,811.98 = 26,396.19 : x
  2. Step 2: Convert to fraction form
    82,571.70/123,811.98 = 26,396.19/x
  3. Step 3: Cross multiply
    82,571.70x = 123,811.98 × 26,396.19
  4. Step 4: Simplify right side
    82,571.70x = 3,268,164,548.36
  5. Step 5: Solve for x
    x = 3,268,164,548.36/82,571.70
  6. Step 6: Final answer
    x = 39,579.72

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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.