Home / 53,815.50-80,736.21-16,879.50

Finding the Fourth Proportional to 53,815.50, 80,736.21 and 16,879.50

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Solution

The fourth proportional to 53,815.50, 80,736.21 and 16,879.50 is: 25,323.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,815.50 : 80,736.21 = 16,879.50 : x
  2. Step 2: Convert to fraction form
    53,815.50/80,736.21 = 16,879.50/x
  3. Step 3: Cross multiply
    53,815.50x = 80,736.21 × 16,879.50
  4. Step 4: Simplify right side
    53,815.50x = 1,362,786,856.70
  5. Step 5: Solve for x
    x = 1,362,786,856.70/53,815.50
  6. Step 6: Final answer
    x = 25,323.31

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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.