Home / 69,418.72-104,132.64-27,860.32

Finding the Fourth Proportional to 69,418.72, 104,132.64 and 27,860.32

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Solution

The fourth proportional to 69,418.72, 104,132.64 and 27,860.32 is: 41,792.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,418.72 : 104,132.64 = 27,860.32 : x
  2. Step 2: Convert to fraction form
    69,418.72/104,132.64 = 27,860.32/x
  3. Step 3: Cross multiply
    69,418.72x = 104,132.64 × 27,860.32
  4. Step 4: Simplify right side
    69,418.72x = 2,901,168,672.84
  5. Step 5: Solve for x
    x = 2,901,168,672.84/69,418.72
  6. Step 6: Final answer
    x = 41,792.31

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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.