Home / 80,890.75-121,342.26-27,566.15

Finding the Fourth Proportional to 80,890.75, 121,342.26 and 27,566.15

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Solution

The fourth proportional to 80,890.75, 121,342.26 and 27,566.15 is: 41,351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,890.75 : 121,342.26 = 27,566.15 : x
  2. Step 2: Convert to fraction form
    80,890.75/121,342.26 = 27,566.15/x
  3. Step 3: Cross multiply
    80,890.75x = 121,342.26 × 27,566.15
  4. Step 4: Simplify right side
    80,890.75x = 3,344,938,940.50
  5. Step 5: Solve for x
    x = 3,344,938,940.50/80,890.75
  6. Step 6: Final answer
    x = 41,351.32

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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.