Home / 86,516.91-129,815.33-33,940.35

Finding the Fourth Proportional to 86,516.91, 129,815.33 and 33,940.35

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Solution

The fourth proportional to 86,516.91, 129,815.33 and 33,940.35 is: 50,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,516.91 : 129,815.33 = 33,940.35 : x
  2. Step 2: Convert to fraction form
    86,516.91/129,815.33 = 33,940.35/x
  3. Step 3: Cross multiply
    86,516.91x = 129,815.33 × 33,940.35
  4. Step 4: Simplify right side
    86,516.91x = 4,405,977,565.86
  5. Step 5: Solve for x
    x = 4,405,977,565.86/86,516.91
  6. Step 6: Final answer
    x = 50,926.20

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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.