Home / 69,488.20-104,078.70-53,782.60

Finding the Fourth Proportional to 69,488.20, 104,078.70 and 53,782.60

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Solution

The fourth proportional to 69,488.20, 104,078.70 and 53,782.60 is: 80,555.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,488.20 : 104,078.70 = 53,782.60 : x
  2. Step 2: Convert to fraction form
    69,488.20/104,078.70 = 53,782.60/x
  3. Step 3: Cross multiply
    69,488.20x = 104,078.70 × 53,782.60
  4. Step 4: Simplify right side
    69,488.20x = 5,597,623,090.62
  5. Step 5: Solve for x
    x = 5,597,623,090.62/69,488.20
  6. Step 6: Final answer
    x = 80,555.02

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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.