Home / 86,941.24-130,418.82-27,785.32

Finding the Fourth Proportional to 86,941.24, 130,418.82 and 27,785.32

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Solution

The fourth proportional to 86,941.24, 130,418.82 and 27,785.32 is: 41,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,941.24 : 130,418.82 = 27,785.32 : x
  2. Step 2: Convert to fraction form
    86,941.24/130,418.82 = 27,785.32/x
  3. Step 3: Cross multiply
    86,941.24x = 130,418.82 × 27,785.32
  4. Step 4: Simplify right side
    86,941.24x = 3,623,728,647.72
  5. Step 5: Solve for x
    x = 3,623,728,647.72/86,941.24
  6. Step 6: Final answer
    x = 41,680.20

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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.