Finding the Fourth Proportional to 90,249.26, 135,498.11 and 45,905.99
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Solution
The fourth proportional to 90,249.26, 135,498.11 and 45,905.99 is: 68,922.16
Step by Step Solution
- Step 1: Write the proportion equation
90,249.26 : 135,498.11 = 45,905.99 : x - Step 2: Convert to fraction form
90,249.26/135,498.11 = 45,905.99/x - Step 3: Cross multiply
90,249.26x = 135,498.11 × 45,905.99 - Step 4: Simplify right side
90,249.26x = 6,220,173,975.66 - Step 5: Solve for x
x = 6,220,173,975.66/90,249.26 - Step 6: Final answer
x = 68,922.16
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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.