Home / 69,855.48-104,783.18-19,936.58

Finding the Fourth Proportional to 69,855.48, 104,783.18 and 19,936.58

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Solution

The fourth proportional to 69,855.48, 104,783.18 and 19,936.58 is: 29,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,855.48 : 104,783.18 = 19,936.58 : x
  2. Step 2: Convert to fraction form
    69,855.48/104,783.18 = 19,936.58/x
  3. Step 3: Cross multiply
    69,855.48x = 104,783.18 × 19,936.58
  4. Step 4: Simplify right side
    69,855.48x = 2,089,017,627.13
  5. Step 5: Solve for x
    x = 2,089,017,627.13/69,855.48
  6. Step 6: Final answer
    x = 29,904.85

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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.