Home / 49,906.40-68,865.19-28,692.50

Finding the Fourth Proportional to 49,906.40, 68,865.19 and 28,692.50

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Solution

The fourth proportional to 49,906.40, 68,865.19 and 28,692.50 is: 39,592.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,906.40 : 68,865.19 = 28,692.50 : x
  2. Step 2: Convert to fraction form
    49,906.40/68,865.19 = 28,692.50/x
  3. Step 3: Cross multiply
    49,906.40x = 68,865.19 × 28,692.50
  4. Step 4: Simplify right side
    49,906.40x = 1,975,914,048.02
  5. Step 5: Solve for x
    x = 1,975,914,048.02/49,906.40
  6. Step 6: Final answer
    x = 39,592.40

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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.