Home / 98,943.66-136,542.42-53,621.64

Finding the Fourth Proportional to 98,943.66, 136,542.42 and 53,621.64

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Solution

The fourth proportional to 98,943.66, 136,542.42 and 53,621.64 is: 73,997.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,943.66 : 136,542.42 = 53,621.64 : x
  2. Step 2: Convert to fraction form
    98,943.66/136,542.42 = 53,621.64/x
  3. Step 3: Cross multiply
    98,943.66x = 136,542.42 × 53,621.64
  4. Step 4: Simplify right side
    98,943.66x = 7,321,628,489.97
  5. Step 5: Solve for x
    x = 7,321,628,489.97/98,943.66
  6. Step 6: Final answer
    x = 73,997.95

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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.