Home / 57,185.70-78,913.95-31,692.44

Finding the Fourth Proportional to 57,185.70, 78,913.95 and 31,692.44

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Solution

The fourth proportional to 57,185.70, 78,913.95 and 31,692.44 is: 43,734.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,185.70 : 78,913.95 = 31,692.44 : x
  2. Step 2: Convert to fraction form
    57,185.70/78,913.95 = 31,692.44/x
  3. Step 3: Cross multiply
    57,185.70x = 78,913.95 × 31,692.44
  4. Step 4: Simplify right side
    57,185.70x = 2,500,975,230.97
  5. Step 5: Solve for x
    x = 2,500,975,230.97/57,185.70
  6. Step 6: Final answer
    x = 43,734.28

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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.