Home / 49,865.79-68,793.39-28,640.55

Finding the Fourth Proportional to 49,865.79, 68,793.39 and 28,640.55

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Solution

The fourth proportional to 49,865.79, 68,793.39 and 28,640.55 is: 39,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,865.79 : 68,793.39 = 28,640.55 : x
  2. Step 2: Convert to fraction form
    49,865.79/68,793.39 = 28,640.55/x
  3. Step 3: Cross multiply
    49,865.79x = 68,793.39 × 28,640.55
  4. Step 4: Simplify right side
    49,865.79x = 1,970,280,525.96
  5. Step 5: Solve for x
    x = 1,970,280,525.96/49,865.79
  6. Step 6: Final answer
    x = 39,511.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.