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Finding the Fourth Proportional to 71,374.74, 107,067.42 and 21,450.84

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Solution

The fourth proportional to 71,374.74, 107,067.42 and 21,450.84 is: 32,177.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,374.74 : 107,067.42 = 21,450.84 : x
  2. Step 2: Convert to fraction form
    71,374.74/107,067.42 = 21,450.84/x
  3. Step 3: Cross multiply
    71,374.74x = 107,067.42 × 21,450.84
  4. Step 4: Simplify right side
    71,374.74x = 2,296,686,095.63
  5. Step 5: Solve for x
    x = 2,296,686,095.63/71,374.74
  6. Step 6: Final answer
    x = 32,177.86

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1.5x scale

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.