Home / 71,617.63-98,832.45-39,786.55

Finding the Fourth Proportional to 71,617.63, 98,832.45 and 39,786.55

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Solution

The fourth proportional to 71,617.63, 98,832.45 and 39,786.55 is: 54,905.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,617.63 : 98,832.45 = 39,786.55 : x
  2. Step 2: Convert to fraction form
    71,617.63/98,832.45 = 39,786.55/x
  3. Step 3: Cross multiply
    71,617.63x = 98,832.45 × 39,786.55
  4. Step 4: Simplify right side
    71,617.63x = 3,932,202,213.55
  5. Step 5: Solve for x
    x = 3,932,202,213.55/71,617.63
  6. Step 6: Final answer
    x = 54,905.51

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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.