Home / 81,379.05-122,086.01-25,217.93

Finding the Fourth Proportional to 81,379.05, 122,086.01 and 25,217.93

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Solution

The fourth proportional to 81,379.05, 122,086.01 and 25,217.93 is: 37,832.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,379.05 : 122,086.01 = 25,217.93 : x
  2. Step 2: Convert to fraction form
    81,379.05/122,086.01 = 25,217.93/x
  3. Step 3: Cross multiply
    81,379.05x = 122,086.01 × 25,217.93
  4. Step 4: Simplify right side
    81,379.05x = 3,078,756,454.16
  5. Step 5: Solve for x
    x = 3,078,756,454.16/81,379.05
  6. Step 6: Final answer
    x = 37,832.30

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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.