Home / 81,492.35-122,255.82-25,331.09

Finding the Fourth Proportional to 81,492.35, 122,255.82 and 25,331.09

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Solution

The fourth proportional to 81,492.35, 122,255.82 and 25,331.09 is: 38,002.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,492.35 : 122,255.82 = 25,331.09 : x
  2. Step 2: Convert to fraction form
    81,492.35/122,255.82 = 25,331.09/x
  3. Step 3: Cross multiply
    81,492.35x = 122,255.82 × 25,331.09
  4. Step 4: Simplify right side
    81,492.35x = 3,096,872,568.16
  5. Step 5: Solve for x
    x = 3,096,872,568.16/81,492.35
  6. Step 6: Final answer
    x = 38,002.01

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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.