Home / 85,556.09-128,227.21-41,170.93

Finding the Fourth Proportional to 85,556.09, 128,227.21 and 41,170.93

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Solution

The fourth proportional to 85,556.09, 128,227.21 and 41,170.93 is: 61,704.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,556.09 : 128,227.21 = 41,170.93 : x
  2. Step 2: Convert to fraction form
    85,556.09/128,227.21 = 41,170.93/x
  3. Step 3: Cross multiply
    85,556.09x = 128,227.21 × 41,170.93
  4. Step 4: Simplify right side
    85,556.09x = 5,279,233,487.01
  5. Step 5: Solve for x
    x = 5,279,233,487.01/85,556.09
  6. Step 6: Final answer
    x = 61,704.94

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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.