Home / 57,169.86-85,736.61-53,438.34

Finding the Fourth Proportional to 57,169.86, 85,736.61 and 53,438.34

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Solution

The fourth proportional to 57,169.86, 85,736.61 and 53,438.34 is: 80,140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,169.86 : 85,736.61 = 53,438.34 : x
  2. Step 2: Convert to fraction form
    57,169.86/85,736.61 = 53,438.34/x
  3. Step 3: Cross multiply
    57,169.86x = 85,736.61 × 53,438.34
  4. Step 4: Simplify right side
    57,169.86x = 4,581,622,115.63
  5. Step 5: Solve for x
    x = 4,581,622,115.63/57,169.86
  6. Step 6: Final answer
    x = 80,140.52

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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.