Finding the Fourth Proportional to 90,415.26, 135,604.35 and 34,235.99
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Solution
The fourth proportional to 90,415.26, 135,604.35 and 34,235.99 is: 51,346.96
Step by Step Solution
- Step 1: Write the proportion equation
90,415.26 : 135,604.35 = 34,235.99 : x - Step 2: Convert to fraction form
90,415.26/135,604.35 = 34,235.99/x - Step 3: Cross multiply
90,415.26x = 135,604.35 × 34,235.99 - Step 4: Simplify right side
90,415.26x = 4,642,548,492.53 - Step 5: Solve for x
x = 4,642,548,492.53/90,415.26 - Step 6: Final answer
x = 51,346.96
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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.