Home / 81,961.36-122,949-22,797.03

Finding the Fourth Proportional to 81,961.36, 122,949 and 22,797.03

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Solution

The fourth proportional to 81,961.36, 122,949 and 22,797.03 is: 34,197.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,961.36 : 122,949 = 22,797.03 : x
  2. Step 2: Convert to fraction form
    81,961.36/122,949 = 22,797.03/x
  3. Step 3: Cross multiply
    81,961.36x = 122,949 × 22,797.03
  4. Step 4: Simplify right side
    81,961.36x = 2,802,872,041.47
  5. Step 5: Solve for x
    x = 2,802,872,041.47/81,961.36
  6. Step 6: Final answer
    x = 34,197.48

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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.