Home / 69,288.78-95,611.80-39,078.81

Finding the Fourth Proportional to 69,288.78, 95,611.80 and 39,078.81

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Solution

The fourth proportional to 69,288.78, 95,611.80 and 39,078.81 is: 53,924.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,288.78 : 95,611.80 = 39,078.81 : x
  2. Step 2: Convert to fraction form
    69,288.78/95,611.80 = 39,078.81/x
  3. Step 3: Cross multiply
    69,288.78x = 95,611.80 × 39,078.81
  4. Step 4: Simplify right side
    69,288.78x = 3,736,395,365.96
  5. Step 5: Solve for x
    x = 3,736,395,365.96/69,288.78
  6. Step 6: Final answer
    x = 53,924.97

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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.