Home / 43,804.77-65,716.92-12,640.02

Finding the Fourth Proportional to 43,804.77, 65,716.92 and 12,640.02

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Solution

The fourth proportional to 43,804.77, 65,716.92 and 12,640.02 is: 18,962.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,804.77 : 65,716.92 = 12,640.02 : x
  2. Step 2: Convert to fraction form
    43,804.77/65,716.92 = 12,640.02/x
  3. Step 3: Cross multiply
    43,804.77x = 65,716.92 × 12,640.02
  4. Step 4: Simplify right side
    43,804.77x = 830,663,183.14
  5. Step 5: Solve for x
    x = 830,663,183.14/43,804.77
  6. Step 6: Final answer
    x = 18,962.85

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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.