Home / 81,865.26-122,797.89-29,271.56

Finding the Fourth Proportional to 81,865.26, 122,797.89 and 29,271.56

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Solution

The fourth proportional to 81,865.26, 122,797.89 and 29,271.56 is: 43,907.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,865.26 : 122,797.89 = 29,271.56 : x
  2. Step 2: Convert to fraction form
    81,865.26/122,797.89 = 29,271.56/x
  3. Step 3: Cross multiply
    81,865.26x = 122,797.89 × 29,271.56
  4. Step 4: Simplify right side
    81,865.26x = 3,594,485,191.02
  5. Step 5: Solve for x
    x = 3,594,485,191.02/81,865.26
  6. Step 6: Final answer
    x = 43,907.33

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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.