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Finding the Fourth Proportional to 79,374.42, 119,079 and 26,782.38

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Solution

The fourth proportional to 79,374.42, 119,079 and 26,782.38 is: 40,179.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,374.42 : 119,079 = 26,782.38 : x
  2. Step 2: Convert to fraction form
    79,374.42/119,079 = 26,782.38/x
  3. Step 3: Cross multiply
    79,374.42x = 119,079 × 26,782.38
  4. Step 4: Simplify right side
    79,374.42x = 3,189,219,028.02
  5. Step 5: Solve for x
    x = 3,189,219,028.02/79,374.42
  6. Step 6: Final answer
    x = 40,179.43

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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.