Home / 53,806.08-80,709.53-18,745.68

Finding the Fourth Proportional to 53,806.08, 80,709.53 and 18,745.68

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Solution

The fourth proportional to 53,806.08, 80,709.53 and 18,745.68 is: 28,118.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,806.08 : 80,709.53 = 18,745.68 : x
  2. Step 2: Convert to fraction form
    53,806.08/80,709.53 = 18,745.68/x
  3. Step 3: Cross multiply
    53,806.08x = 80,709.53 × 18,745.68
  4. Step 4: Simplify right side
    53,806.08x = 1,512,954,928.60
  5. Step 5: Solve for x
    x = 1,512,954,928.60/53,806.08
  6. Step 6: Final answer
    x = 28,118.66

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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.