Home / 55,147.05-82,721.07-15,704.15

Finding the Fourth Proportional to 55,147.05, 82,721.07 and 15,704.15

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Solution

The fourth proportional to 55,147.05, 82,721.07 and 15,704.15 is: 23,556.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,147.05 : 82,721.07 = 15,704.15 : x
  2. Step 2: Convert to fraction form
    55,147.05/82,721.07 = 15,704.15/x
  3. Step 3: Cross multiply
    55,147.05x = 82,721.07 × 15,704.15
  4. Step 4: Simplify right side
    55,147.05x = 1,299,063,677.84
  5. Step 5: Solve for x
    x = 1,299,063,677.84/55,147.05
  6. Step 6: Final answer
    x = 23,556.36

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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.