Home / 98,042.28-135,322.38-55,625.64

Finding the Fourth Proportional to 98,042.28, 135,322.38 and 55,625.64

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Solution

The fourth proportional to 98,042.28, 135,322.38 and 55,625.64 is: 76,777.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,042.28 : 135,322.38 = 55,625.64 : x
  2. Step 2: Convert to fraction form
    98,042.28/135,322.38 = 55,625.64/x
  3. Step 3: Cross multiply
    98,042.28x = 135,322.38 × 55,625.64
  4. Step 4: Simplify right side
    98,042.28x = 7,527,393,993.82
  5. Step 5: Solve for x
    x = 7,527,393,993.82/98,042.28
  6. Step 6: Final answer
    x = 76,777.02

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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.