Home / 90,822.25-136,255.25-28,492.75

Finding the Fourth Proportional to 90,822.25, 136,255.25 and 28,492.75

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Solution

The fourth proportional to 90,822.25, 136,255.25 and 28,492.75 is: 42,745.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,822.25 : 136,255.25 = 28,492.75 : x
  2. Step 2: Convert to fraction form
    90,822.25/136,255.25 = 28,492.75/x
  3. Step 3: Cross multiply
    90,822.25x = 136,255.25 × 28,492.75
  4. Step 4: Simplify right side
    90,822.25x = 3,882,286,774.44
  5. Step 5: Solve for x
    x = 3,882,286,774.44/90,822.25
  6. Step 6: Final answer
    x = 42,745.99

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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.