Finding the Fourth Proportional to 71,116.70, 106,673.72 and 21,230.62
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Solution
The fourth proportional to 71,116.70, 106,673.72 and 21,230.62 is: 31,845.53
Step by Step Solution
- Step 1: Write the proportion equation
71,116.70 : 106,673.72 = 21,230.62 : x - Step 2: Convert to fraction form
71,116.70/106,673.72 = 21,230.62/x - Step 3: Cross multiply
71,116.70x = 106,673.72 × 21,230.62 - Step 4: Simplify right side
71,116.70x = 2,264,749,213.31 - Step 5: Solve for x
x = 2,264,749,213.31/71,116.70 - Step 6: Final answer
x = 31,845.53
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1.5x scale
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.