Home / 49,128.20-73,692.30-40,380.20

Finding the Fourth Proportional to 49,128.20, 73,692.30 and 40,380.20

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Solution

The fourth proportional to 49,128.20, 73,692.30 and 40,380.20 is: 60,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,128.20 : 73,692.30 = 40,380.20 : x
  2. Step 2: Convert to fraction form
    49,128.20/73,692.30 = 40,380.20/x
  3. Step 3: Cross multiply
    49,128.20x = 73,692.30 × 40,380.20
  4. Step 4: Simplify right side
    49,128.20x = 2,975,709,812.46
  5. Step 5: Solve for x
    x = 2,975,709,812.46/49,128.20
  6. Step 6: Final answer
    x = 60,570.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.