Home / 65,814.05-98,720.99-21,440.73

Finding the Fourth Proportional to 65,814.05, 98,720.99 and 21,440.73

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Solution

The fourth proportional to 65,814.05, 98,720.99 and 21,440.73 is: 32,161.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,814.05 : 98,720.99 = 21,440.73 : x
  2. Step 2: Convert to fraction form
    65,814.05/98,720.99 = 21,440.73/x
  3. Step 3: Cross multiply
    65,814.05x = 98,720.99 × 21,440.73
  4. Step 4: Simplify right side
    65,814.05x = 2,116,649,984.72
  5. Step 5: Solve for x
    x = 2,116,649,984.72/65,814.05
  6. Step 6: Final answer
    x = 32,161.07

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Similar ratio
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1.5x scale

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.