Finding the Fourth Proportional to 96,911.12, 133,732.68 and 54,473.60
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Solution
The fourth proportional to 96,911.12, 133,732.68 and 54,473.60 is: 75,170.95
Step by Step Solution
- Step 1: Write the proportion equation
96,911.12 : 133,732.68 = 54,473.60 : x - Step 2: Convert to fraction form
96,911.12/133,732.68 = 54,473.60/x - Step 3: Cross multiply
96,911.12x = 133,732.68 × 54,473.60 - Step 4: Simplify right side
96,911.12x = 7,284,900,517.25 - Step 5: Solve for x
x = 7,284,900,517.25/96,911.12 - Step 6: Final answer
x = 75,170.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.