Home / 86,932.26-130,164.78-55,170.36

Finding the Fourth Proportional to 86,932.26, 130,164.78 and 55,170.36

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Solution

The fourth proportional to 86,932.26, 130,164.78 and 55,170.36 is: 82,607.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,932.26 : 130,164.78 = 55,170.36 : x
  2. Step 2: Convert to fraction form
    86,932.26/130,164.78 = 55,170.36/x
  3. Step 3: Cross multiply
    86,932.26x = 130,164.78 × 55,170.36
  4. Step 4: Simplify right side
    86,932.26x = 7,181,237,771.92
  5. Step 5: Solve for x
    x = 7,181,237,771.92/86,932.26
  6. Step 6: Final answer
    x = 82,607.28

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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.