Home / 57,986.35-86,979.93-15,865.54

Finding the Fourth Proportional to 57,986.35, 86,979.93 and 15,865.54

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Solution

The fourth proportional to 57,986.35, 86,979.93 and 15,865.54 is: 23,798.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,986.35 : 86,979.93 = 15,865.54 : x
  2. Step 2: Convert to fraction form
    57,986.35/86,979.93 = 15,865.54/x
  3. Step 3: Cross multiply
    57,986.35x = 86,979.93 × 15,865.54
  4. Step 4: Simplify right side
    57,986.35x = 1,379,983,558.61
  5. Step 5: Solve for x
    x = 1,379,983,558.61/57,986.35
  6. Step 6: Final answer
    x = 23,798.42

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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.