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Finding the Fourth Proportional to 69,775.37, 104,647.30 and 19,854.37

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Solution

The fourth proportional to 69,775.37, 104,647.30 and 19,854.37 is: 29,777.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,775.37 : 104,647.30 = 19,854.37 : x
  2. Step 2: Convert to fraction form
    69,775.37/104,647.30 = 19,854.37/x
  3. Step 3: Cross multiply
    69,775.37x = 104,647.30 × 19,854.37
  4. Step 4: Simplify right side
    69,775.37x = 2,077,705,706.23
  5. Step 5: Solve for x
    x = 2,077,705,706.23/69,775.37
  6. Step 6: Final answer
    x = 29,777.06

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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.