Home / 57,204.94-78,855.30-40,161.37

Finding the Fourth Proportional to 57,204.94, 78,855.30 and 40,161.37

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Solution

The fourth proportional to 57,204.94, 78,855.30 and 40,161.37 is: 55,361.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,204.94 : 78,855.30 = 40,161.37 : x
  2. Step 2: Convert to fraction form
    57,204.94/78,855.30 = 40,161.37/x
  3. Step 3: Cross multiply
    57,204.94x = 78,855.30 × 40,161.37
  4. Step 4: Simplify right side
    57,204.94x = 3,166,936,879.76
  5. Step 5: Solve for x
    x = 3,166,936,879.76/57,204.94
  6. Step 6: Final answer
    x = 55,361.25

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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.