Finding the Fourth Proportional to 75,213.99, 103,805.67 and 43,382.19
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Solution
The fourth proportional to 75,213.99, 103,805.67 and 43,382.19 is: 59,873.40
Step by Step Solution
- Step 1: Write the proportion equation
75,213.99 : 103,805.67 = 43,382.19 : x - Step 2: Convert to fraction form
75,213.99/103,805.67 = 43,382.19/x - Step 3: Cross multiply
75,213.99x = 103,805.67 × 43,382.19 - Step 4: Simplify right side
75,213.99x = 4,503,317,299.02 - Step 5: Solve for x
x = 4,503,317,299.02/75,213.99 - Step 6: Final answer
x = 59,873.40
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1.5x scale
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.