Finding the Fourth Proportional to 85,309.26, 127,909.14 and 35,423.79
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Solution
The fourth proportional to 85,309.26, 127,909.14 and 35,423.79 is: 53,112.95
Step by Step Solution
- Step 1: Write the proportion equation
85,309.26 : 127,909.14 = 35,423.79 : x - Step 2: Convert to fraction form
85,309.26/127,909.14 = 35,423.79/x - Step 3: Cross multiply
85,309.26x = 127,909.14 × 35,423.79 - Step 4: Simplify right side
85,309.26x = 4,531,026,514.44 - Step 5: Solve for x
x = 4,531,026,514.44/85,309.26 - Step 6: Final answer
x = 53,112.95
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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.