Home / 86,144.32-118,889.81-52,154.09

Finding the Fourth Proportional to 86,144.32, 118,889.81 and 52,154.09

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Solution

The fourth proportional to 86,144.32, 118,889.81 and 52,154.09 is: 71,979.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,144.32 : 118,889.81 = 52,154.09 : x
  2. Step 2: Convert to fraction form
    86,144.32/118,889.81 = 52,154.09/x
  3. Step 3: Cross multiply
    86,144.32x = 118,889.81 × 52,154.09
  4. Step 4: Simplify right side
    86,144.32x = 6,200,589,850.82
  5. Step 5: Solve for x
    x = 6,200,589,850.82/86,144.32
  6. Step 6: Final answer
    x = 71,979.09

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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.