Finding the Fourth Proportional to 87,349.67, 130,992.26 and 31,174.75
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Solution
The fourth proportional to 87,349.67, 130,992.26 and 31,174.75 is: 46,750.62
Step by Step Solution
- Step 1: Write the proportion equation
87,349.67 : 130,992.26 = 31,174.75 : x - Step 2: Convert to fraction form
87,349.67/130,992.26 = 31,174.75/x - Step 3: Cross multiply
87,349.67x = 130,992.26 × 31,174.75 - Step 4: Simplify right side
87,349.67x = 4,083,650,965.30 - Step 5: Solve for x
x = 4,083,650,965.30/87,349.67 - Step 6: Final answer
x = 46,750.62
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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.