Home / 77,556.78-116,335.62-27,638.80

Finding the Fourth Proportional to 77,556.78, 116,335.62 and 27,638.80

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Solution

The fourth proportional to 77,556.78, 116,335.62 and 27,638.80 is: 41,458.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,556.78 : 116,335.62 = 27,638.80 : x
  2. Step 2: Convert to fraction form
    77,556.78/116,335.62 = 27,638.80/x
  3. Step 3: Cross multiply
    77,556.78x = 116,335.62 × 27,638.80
  4. Step 4: Simplify right side
    77,556.78x = 3,215,376,643.22
  5. Step 5: Solve for x
    x = 3,215,376,643.22/77,556.78
  6. Step 6: Final answer
    x = 41,458.36

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1.5x scale

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.