Home / 69,327.06-103,993.20-19,405.88

Finding the Fourth Proportional to 69,327.06, 103,993.20 and 19,405.88

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Solution

The fourth proportional to 69,327.06, 103,993.20 and 19,405.88 is: 29,109.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,327.06 : 103,993.20 = 19,405.88 : x
  2. Step 2: Convert to fraction form
    69,327.06/103,993.20 = 19,405.88/x
  3. Step 3: Cross multiply
    69,327.06x = 103,993.20 × 19,405.88
  4. Step 4: Simplify right side
    69,327.06x = 2,018,078,967.28
  5. Step 5: Solve for x
    x = 2,018,078,967.28/69,327.06
  6. Step 6: Final answer
    x = 29,109.54

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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.