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Finding the Fourth Proportional to 69,438, 104,135.40 and 25,058.94

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Solution

The fourth proportional to 69,438, 104,135.40 and 25,058.94 is: 37,580.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,438 : 104,135.40 = 25,058.94 : x
  2. Step 2: Convert to fraction form
    69,438/104,135.40 = 25,058.94/x
  3. Step 3: Cross multiply
    69,438x = 104,135.40 × 25,058.94
  4. Step 4: Simplify right side
    69,438x = 2,609,522,740.48
  5. Step 5: Solve for x
    x = 2,609,522,740.48/69,438
  6. Step 6: Final answer
    x = 37,580.61

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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.