Home / 53,826.90-80,739.78-18,766.50

Finding the Fourth Proportional to 53,826.90, 80,739.78 and 18,766.50

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Solution

The fourth proportional to 53,826.90, 80,739.78 and 18,766.50 is: 28,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,826.90 : 80,739.78 = 18,766.50 : x
  2. Step 2: Convert to fraction form
    53,826.90/80,739.78 = 18,766.50/x
  3. Step 3: Cross multiply
    53,826.90x = 80,739.78 × 18,766.50
  4. Step 4: Simplify right side
    53,826.90x = 1,515,203,081.37
  5. Step 5: Solve for x
    x = 1,515,203,081.37/53,826.90
  6. Step 6: Final answer
    x = 28,149.55

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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.