Home / 78,825.86-118,163.61-26,198.44

Finding the Fourth Proportional to 78,825.86, 118,163.61 and 26,198.44

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Solution

The fourth proportional to 78,825.86, 118,163.61 and 26,198.44 is: 39,272.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,825.86 : 118,163.61 = 26,198.44 : x
  2. Step 2: Convert to fraction form
    78,825.86/118,163.61 = 26,198.44/x
  3. Step 3: Cross multiply
    78,825.86x = 118,163.61 × 26,198.44
  4. Step 4: Simplify right side
    78,825.86x = 3,095,701,951.36
  5. Step 5: Solve for x
    x = 3,095,701,951.36/78,825.86
  6. Step 6: Final answer
    x = 39,272.67

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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.