Home / 81,418.95-122,145.90-25,257.87

Finding the Fourth Proportional to 81,418.95, 122,145.90 and 25,257.87

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Solution

The fourth proportional to 81,418.95, 122,145.90 and 25,257.87 is: 37,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,418.95 : 122,145.90 = 25,257.87 : x
  2. Step 2: Convert to fraction form
    81,418.95/122,145.90 = 25,257.87/x
  3. Step 3: Cross multiply
    81,418.95x = 122,145.90 × 25,257.87
  4. Step 4: Simplify right side
    81,418.95x = 3,085,145,263.23
  5. Step 5: Solve for x
    x = 3,085,145,263.23/81,418.95
  6. Step 6: Final answer
    x = 37,892.23

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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.