Home / 83,857.07-115,724.57-46,131.32

Finding the Fourth Proportional to 83,857.07, 115,724.57 and 46,131.32

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Solution

The fourth proportional to 83,857.07, 115,724.57 and 46,131.32 is: 63,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,857.07 : 115,724.57 = 46,131.32 : x
  2. Step 2: Convert to fraction form
    83,857.07/115,724.57 = 46,131.32/x
  3. Step 3: Cross multiply
    83,857.07x = 115,724.57 × 46,131.32
  4. Step 4: Simplify right side
    83,857.07x = 5,338,526,361.25
  5. Step 5: Solve for x
    x = 5,338,526,361.25/83,857.07
  6. Step 6: Final answer
    x = 63,662.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.