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Finding the Fourth Proportional to 71,941.84, 107,912.59 and 19,351.37

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Solution

The fourth proportional to 71,941.84, 107,912.59 and 19,351.37 is: 29,027.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,941.84 : 107,912.59 = 19,351.37 : x
  2. Step 2: Convert to fraction form
    71,941.84/107,912.59 = 19,351.37/x
  3. Step 3: Cross multiply
    71,941.84x = 107,912.59 × 19,351.37
  4. Step 4: Simplify right side
    71,941.84x = 2,088,256,678.15
  5. Step 5: Solve for x
    x = 2,088,256,678.15/71,941.84
  6. Step 6: Final answer
    x = 29,027.01

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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.