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Finding the Fourth Proportional to 75,276.36, 112,922.12 and 19,872.36

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Solution

The fourth proportional to 75,276.36, 112,922.12 and 19,872.36 is: 29,810.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,276.36 : 112,922.12 = 19,872.36 : x
  2. Step 2: Convert to fraction form
    75,276.36/112,922.12 = 19,872.36/x
  3. Step 3: Cross multiply
    75,276.36x = 112,922.12 × 19,872.36
  4. Step 4: Simplify right side
    75,276.36x = 2,244,029,020.60
  5. Step 5: Solve for x
    x = 2,244,029,020.60/75,276.36
  6. Step 6: Final answer
    x = 29,810.54

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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.