Home / 81,941.19-122,912.59-22,781.48

Finding the Fourth Proportional to 81,941.19, 122,912.59 and 22,781.48

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Solution

The fourth proportional to 81,941.19, 122,912.59 and 22,781.48 is: 34,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,941.19 : 122,912.59 = 22,781.48 : x
  2. Step 2: Convert to fraction form
    81,941.19/122,912.59 = 22,781.48/x
  3. Step 3: Cross multiply
    81,941.19x = 122,912.59 × 22,781.48
  4. Step 4: Simplify right side
    81,941.19x = 2,800,130,427.72
  5. Step 5: Solve for x
    x = 2,800,130,427.72/81,941.19
  6. Step 6: Final answer
    x = 34,172.44

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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.