Home / 86,814.40-130,231.32-27,635.80

Finding the Fourth Proportional to 86,814.40, 130,231.32 and 27,635.80

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Solution

The fourth proportional to 86,814.40, 130,231.32 and 27,635.80 is: 41,456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,814.40 : 130,231.32 = 27,635.80 : x
  2. Step 2: Convert to fraction form
    86,814.40/130,231.32 = 27,635.80/x
  3. Step 3: Cross multiply
    86,814.40x = 130,231.32 × 27,635.80
  4. Step 4: Simplify right side
    86,814.40x = 3,599,046,713.26
  5. Step 5: Solve for x
    x = 3,599,046,713.26/86,814.40
  6. Step 6: Final answer
    x = 41,456.79

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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.