Home / 57,768.08-86,679.86-28,169.78

Finding the Fourth Proportional to 57,768.08, 86,679.86 and 28,169.78

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Solution

The fourth proportional to 57,768.08, 86,679.86 and 28,169.78 is: 42,268.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,768.08 : 86,679.86 = 28,169.78 : x
  2. Step 2: Convert to fraction form
    57,768.08/86,679.86 = 28,169.78/x
  3. Step 3: Cross multiply
    57,768.08x = 86,679.86 × 28,169.78
  4. Step 4: Simplify right side
    57,768.08x = 2,441,752,012.38
  5. Step 5: Solve for x
    x = 2,441,752,012.38/57,768.08
  6. Step 6: Final answer
    x = 42,268.19

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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.