Home / 86,958.59-130,431.51-27,778.37

Finding the Fourth Proportional to 86,958.59, 130,431.51 and 27,778.37

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Solution

The fourth proportional to 86,958.59, 130,431.51 and 27,778.37 is: 41,665.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,958.59 : 130,431.51 = 27,778.37 : x
  2. Step 2: Convert to fraction form
    86,958.59/130,431.51 = 27,778.37/x
  3. Step 3: Cross multiply
    86,958.59x = 130,431.51 × 27,778.37
  4. Step 4: Simplify right side
    86,958.59x = 3,623,175,393.20
  5. Step 5: Solve for x
    x = 3,623,175,393.20/86,958.59
  6. Step 6: Final answer
    x = 41,665.52

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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.