Home / 78,224.00-117,335.79-54,954.32

Finding the Fourth Proportional to 78,224.00, 117,335.79 and 54,954.32

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Solution

The fourth proportional to 78,224.00, 117,335.79 and 54,954.32 is: 82,431.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,224.00 : 117,335.79 = 54,954.32 : x
  2. Step 2: Convert to fraction form
    78,224.00/117,335.79 = 54,954.32/x
  3. Step 3: Cross multiply
    78,224.00x = 117,335.79 × 54,954.32
  4. Step 4: Simplify right side
    78,224.00x = 6,448,107,964.43
  5. Step 5: Solve for x
    x = 6,448,107,964.43/78,224.00
  6. Step 6: Final answer
    x = 82,431.33

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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.