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Finding the Fourth Proportional to 69,408, 104,090.40 and 25,029

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Solution

The fourth proportional to 69,408, 104,090.40 and 25,029 is: 37,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,408 : 104,090.40 = 25,029 : x
  2. Step 2: Convert to fraction form
    69,408/104,090.40 = 25,029/x
  3. Step 3: Cross multiply
    69,408x = 104,090.40 × 25,029
  4. Step 4: Simplify right side
    69,408x = 2,605,278,621.60
  5. Step 5: Solve for x
    x = 2,605,278,621.60/69,408
  6. Step 6: Final answer
    x = 37,535.71

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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.