Home / 99,792.36-137,716.32-54,473.16

Finding the Fourth Proportional to 99,792.36, 137,716.32 and 54,473.16

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Solution

The fourth proportional to 99,792.36, 137,716.32 and 54,473.16 is: 75,174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,792.36 : 137,716.32 = 54,473.16 : x
  2. Step 2: Convert to fraction form
    99,792.36/137,716.32 = 54,473.16/x
  3. Step 3: Cross multiply
    99,792.36x = 137,716.32 × 54,473.16
  4. Step 4: Simplify right side
    99,792.36x = 7,501,843,133.97
  5. Step 5: Solve for x
    x = 7,501,843,133.97/99,792.36
  6. Step 6: Final answer
    x = 75,174.52

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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.