Home / 90,492.44-135,783.92-40,608.20

Finding the Fourth Proportional to 90,492.44, 135,783.92 and 40,608.20

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Solution

The fourth proportional to 90,492.44, 135,783.92 and 40,608.20 is: 60,932.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,492.44 : 135,783.92 = 40,608.20 : x
  2. Step 2: Convert to fraction form
    90,492.44/135,783.92 = 40,608.20/x
  3. Step 3: Cross multiply
    90,492.44x = 135,783.92 × 40,608.20
  4. Step 4: Simplify right side
    90,492.44x = 5,513,940,580.14
  5. Step 5: Solve for x
    x = 5,513,940,580.14/90,492.44
  6. Step 6: Final answer
    x = 60,932.61

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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.