Home / 81,717.21-122,548.82-26,300.25

Finding the Fourth Proportional to 81,717.21, 122,548.82 and 26,300.25

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Solution

The fourth proportional to 81,717.21, 122,548.82 and 26,300.25 is: 39,441.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,717.21 : 122,548.82 = 26,300.25 : x
  2. Step 2: Convert to fraction form
    81,717.21/122,548.82 = 26,300.25/x
  3. Step 3: Cross multiply
    81,717.21x = 122,548.82 × 26,300.25
  4. Step 4: Simplify right side
    81,717.21x = 3,223,064,471.70
  5. Step 5: Solve for x
    x = 3,223,064,471.70/81,717.21
  6. Step 6: Final answer
    x = 39,441.69

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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.