Home / 82,889.22-124,333.62-20,559.72

Finding the Fourth Proportional to 82,889.22, 124,333.62 and 20,559.72

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Solution

The fourth proportional to 82,889.22, 124,333.62 and 20,559.72 is: 30,839.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,889.22 : 124,333.62 = 20,559.72 : x
  2. Step 2: Convert to fraction form
    82,889.22/124,333.62 = 20,559.72/x
  3. Step 3: Cross multiply
    82,889.22x = 124,333.62 × 20,559.72
  4. Step 4: Simplify right side
    82,889.22x = 2,556,264,413.79
  5. Step 5: Solve for x
    x = 2,556,264,413.79/82,889.22
  6. Step 6: Final answer
    x = 30,839.53

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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.