Home / 81,514.08-122,245.86-39,367.96

Finding the Fourth Proportional to 81,514.08, 122,245.86 and 39,367.96

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Solution

The fourth proportional to 81,514.08, 122,245.86 and 39,367.96 is: 59,039.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,514.08 : 122,245.86 = 39,367.96 : x
  2. Step 2: Convert to fraction form
    81,514.08/122,245.86 = 39,367.96/x
  3. Step 3: Cross multiply
    81,514.08x = 122,245.86 × 39,367.96
  4. Step 4: Simplify right side
    81,514.08x = 4,812,570,126.65
  5. Step 5: Solve for x
    x = 4,812,570,126.65/81,514.08
  6. Step 6: Final answer
    x = 59,039.74

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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.