Home / 49,918.50-68,879.70-28,693.80

Finding the Fourth Proportional to 49,918.50, 68,879.70 and 28,693.80

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Solution

The fourth proportional to 49,918.50, 68,879.70 and 28,693.80 is: 39,592.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,918.50 : 68,879.70 = 28,693.80 : x
  2. Step 2: Convert to fraction form
    49,918.50/68,879.70 = 28,693.80/x
  3. Step 3: Cross multiply
    49,918.50x = 68,879.70 × 28,693.80
  4. Step 4: Simplify right side
    49,918.50x = 1,976,420,335.86
  5. Step 5: Solve for x
    x = 1,976,420,335.86/49,918.50
  6. Step 6: Final answer
    x = 39,592.94

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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.