Home / 55,217.82-82,812.80-15,775.14

Finding the Fourth Proportional to 55,217.82, 82,812.80 and 15,775.14

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Solution

The fourth proportional to 55,217.82, 82,812.80 and 15,775.14 is: 23,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,217.82 : 82,812.80 = 15,775.14 : x
  2. Step 2: Convert to fraction form
    55,217.82/82,812.80 = 15,775.14/x
  3. Step 3: Cross multiply
    55,217.82x = 82,812.80 × 15,775.14
  4. Step 4: Simplify right side
    55,217.82x = 1,306,383,513.79
  5. Step 5: Solve for x
    x = 1,306,383,513.79/55,217.82
  6. Step 6: Final answer
    x = 23,658.73

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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.