Finding the Fourth Proportional to 90,403.07, 135,629.99 and 33,476.12
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Solution
The fourth proportional to 90,403.07, 135,629.99 and 33,476.12 is: 50,223.57
Step by Step Solution
- Step 1: Write the proportion equation
90,403.07 : 135,629.99 = 33,476.12 : x - Step 2: Convert to fraction form
90,403.07/135,629.99 = 33,476.12/x - Step 3: Cross multiply
90,403.07x = 135,629.99 × 33,476.12 - Step 4: Simplify right side
90,403.07x = 4,540,364,975.31 - Step 5: Solve for x
x = 4,540,364,975.31/90,403.07 - Step 6: Final answer
x = 50,223.57
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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.