Home / 69,173.07-103,808.82-53,393.87

Finding the Fourth Proportional to 69,173.07, 103,808.82 and 53,393.87

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Solution

The fourth proportional to 69,173.07, 103,808.82 and 53,393.87 is: 80,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,173.07 : 103,808.82 = 53,393.87 : x
  2. Step 2: Convert to fraction form
    69,173.07/103,808.82 = 53,393.87/x
  3. Step 3: Cross multiply
    69,173.07x = 103,808.82 × 53,393.87
  4. Step 4: Simplify right side
    69,173.07x = 5,542,754,120.89
  5. Step 5: Solve for x
    x = 5,542,754,120.89/69,173.07
  6. Step 6: Final answer
    x = 80,128.79

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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.