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Finding the Fourth Proportional to 42,439, 58,571.22 and 25,672.12

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Solution

The fourth proportional to 42,439, 58,571.22 and 25,672.12 is: 35,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,439 : 58,571.22 = 25,672.12 : x
  2. Step 2: Convert to fraction form
    42,439/58,571.22 = 25,672.12/x
  3. Step 3: Cross multiply
    42,439x = 58,571.22 × 25,672.12
  4. Step 4: Simplify right side
    42,439x = 1,503,647,388.39
  5. Step 5: Solve for x
    x = 1,503,647,388.39/42,439
  6. Step 6: Final answer
    x = 35,430.79

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