Home / 49,902.58-68,879.46-28,688.68

Finding the Fourth Proportional to 49,902.58, 68,879.46 and 28,688.68

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Solution

The fourth proportional to 49,902.58, 68,879.46 and 28,688.68 is: 39,598.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,902.58 : 68,879.46 = 28,688.68 : x
  2. Step 2: Convert to fraction form
    49,902.58/68,879.46 = 28,688.68/x
  3. Step 3: Cross multiply
    49,902.58x = 68,879.46 × 28,688.68
  4. Step 4: Simplify right side
    49,902.58x = 1,976,060,786.51
  5. Step 5: Solve for x
    x = 1,976,060,786.51/49,902.58
  6. Step 6: Final answer
    x = 39,598.37

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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.