Home / 86,787.36-130,194.64-27,636.32

Finding the Fourth Proportional to 86,787.36, 130,194.64 and 27,636.32

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Solution

The fourth proportional to 86,787.36, 130,194.64 and 27,636.32 is: 41,458.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,787.36 : 130,194.64 = 27,636.32 : x
  2. Step 2: Convert to fraction form
    86,787.36/130,194.64 = 27,636.32/x
  3. Step 3: Cross multiply
    86,787.36x = 130,194.64 × 27,636.32
  4. Step 4: Simplify right side
    86,787.36x = 3,598,100,733.32
  5. Step 5: Solve for x
    x = 3,598,100,733.32/86,787.36
  6. Step 6: Final answer
    x = 41,458.81

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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.