Home / 81,986.50-113,121.93-46,169.38

Finding the Fourth Proportional to 81,986.50, 113,121.93 and 46,169.38

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Solution

The fourth proportional to 81,986.50, 113,121.93 and 46,169.38 is: 63,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,986.50 : 113,121.93 = 46,169.38 : x
  2. Step 2: Convert to fraction form
    81,986.50/113,121.93 = 46,169.38/x
  3. Step 3: Cross multiply
    81,986.50x = 113,121.93 × 46,169.38
  4. Step 4: Simplify right side
    81,986.50x = 5,222,769,372.50
  5. Step 5: Solve for x
    x = 5,222,769,372.50/81,986.50
  6. Step 6: Final answer
    x = 63,702.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.