Home / 90,054.45-135,084.41-30,889.27

Finding the Fourth Proportional to 90,054.45, 135,084.41 and 30,889.27

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Solution

The fourth proportional to 90,054.45, 135,084.41 and 30,889.27 is: 46,334.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,054.45 : 135,084.41 = 30,889.27 : x
  2. Step 2: Convert to fraction form
    90,054.45/135,084.41 = 30,889.27/x
  3. Step 3: Cross multiply
    90,054.45x = 135,084.41 × 30,889.27
  4. Step 4: Simplify right side
    90,054.45x = 4,172,658,183.67
  5. Step 5: Solve for x
    x = 4,172,658,183.67/90,054.45
  6. Step 6: Final answer
    x = 46,334.84

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1.5x scale

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.