Home / 61,720.20-92,613.90-33,638.60

Finding the Fourth Proportional to 61,720.20, 92,613.90 and 33,638.60

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Solution

The fourth proportional to 61,720.20, 92,613.90 and 33,638.60 is: 50,476.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,720.20 : 92,613.90 = 33,638.60 : x
  2. Step 2: Convert to fraction form
    61,720.20/92,613.90 = 33,638.60/x
  3. Step 3: Cross multiply
    61,720.20x = 92,613.90 × 33,638.60
  4. Step 4: Simplify right side
    61,720.20x = 3,115,401,936.54
  5. Step 5: Solve for x
    x = 3,115,401,936.54/61,720.20
  6. Step 6: Final answer
    x = 50,476.21

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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.