Home / 81,376.08-122,067.36-25,222.02

Finding the Fourth Proportional to 81,376.08, 122,067.36 and 25,222.02

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Solution

The fourth proportional to 81,376.08, 122,067.36 and 25,222.02 is: 37,834.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,376.08 : 122,067.36 = 25,222.02 : x
  2. Step 2: Convert to fraction form
    81,376.08/122,067.36 = 25,222.02/x
  3. Step 3: Cross multiply
    81,376.08x = 122,067.36 × 25,222.02
  4. Step 4: Simplify right side
    81,376.08x = 3,078,785,395.27
  5. Step 5: Solve for x
    x = 3,078,785,395.27/81,376.08
  6. Step 6: Final answer
    x = 37,834.03

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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.