Home / 65,193-89,971.26-36,511.20

Finding the Fourth Proportional to 65,193, 89,971.26 and 36,511.20

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Solution

The fourth proportional to 65,193, 89,971.26 and 36,511.20 is: 50,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,193 : 89,971.26 = 36,511.20 : x
  2. Step 2: Convert to fraction form
    65,193/89,971.26 = 36,511.20/x
  3. Step 3: Cross multiply
    65,193x = 89,971.26 × 36,511.20
  4. Step 4: Simplify right side
    65,193x = 3,284,958,668.11
  5. Step 5: Solve for x
    x = 3,284,958,668.11/65,193
  6. Step 6: Final answer
    x = 50,388.21

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1.5x scale

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.