Home / 74,067.80-102,213.11-42,236.01

Finding the Fourth Proportional to 74,067.80, 102,213.11 and 42,236.01

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Solution

The fourth proportional to 74,067.80, 102,213.11 and 42,236.01 is: 58,285.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,067.80 : 102,213.11 = 42,236.01 : x
  2. Step 2: Convert to fraction form
    74,067.80/102,213.11 = 42,236.01/x
  3. Step 3: Cross multiply
    74,067.80x = 102,213.11 × 42,236.01
  4. Step 4: Simplify right side
    74,067.80x = 4,317,073,936.09
  5. Step 5: Solve for x
    x = 4,317,073,936.09/74,067.80
  6. Step 6: Final answer
    x = 58,285.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.