Finding the Fourth Proportional to 85,514.12, 128,290.11 and 29,352.97
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Solution
The fourth proportional to 85,514.12, 128,290.11 and 29,352.97 is: 44,035.95
Step by Step Solution
- Step 1: Write the proportion equation
85,514.12 : 128,290.11 = 29,352.97 : x - Step 2: Convert to fraction form
85,514.12/128,290.11 = 29,352.97/x - Step 3: Cross multiply
85,514.12x = 128,290.11 × 29,352.97 - Step 4: Simplify right side
85,514.12x = 3,765,695,750.13 - Step 5: Solve for x
x = 3,765,695,750.13/85,514.12 - Step 6: Final answer
x = 44,035.95
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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.