Home / 78,556.94-117,833.82-19,393.14

Finding the Fourth Proportional to 78,556.94, 117,833.82 and 19,393.14

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Solution

The fourth proportional to 78,556.94, 117,833.82 and 19,393.14 is: 29,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,556.94 : 117,833.82 = 19,393.14 : x
  2. Step 2: Convert to fraction form
    78,556.94/117,833.82 = 19,393.14/x
  3. Step 3: Cross multiply
    78,556.94x = 117,833.82 × 19,393.14
  4. Step 4: Simplify right side
    78,556.94x = 2,285,167,767.99
  5. Step 5: Solve for x
    x = 2,285,167,767.99/78,556.94
  6. Step 6: Final answer
    x = 29,089.32

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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.