Home / 43,784.15-65,662.55-28,790.44

Finding the Fourth Proportional to 43,784.15, 65,662.55 and 28,790.44

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Solution

The fourth proportional to 43,784.15, 65,662.55 and 28,790.44 is: 43,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,784.15 : 65,662.55 = 28,790.44 : x
  2. Step 2: Convert to fraction form
    43,784.15/65,662.55 = 28,790.44/x
  3. Step 3: Cross multiply
    43,784.15x = 65,662.55 × 28,790.44
  4. Step 4: Simplify right side
    43,784.15x = 1,890,453,505.88
  5. Step 5: Solve for x
    x = 1,890,453,505.88/43,784.15
  6. Step 6: Final answer
    x = 43,176.67

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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.