Finding the Fourth Proportional to 71,042.14, 106,563.18 and 21,122.02
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Solution
The fourth proportional to 71,042.14, 106,563.18 and 21,122.02 is: 31,683.02
Step by Step Solution
- Step 1: Write the proportion equation
71,042.14 : 106,563.18 = 21,122.02 : x - Step 2: Convert to fraction form
71,042.14/106,563.18 = 21,122.02/x - Step 3: Cross multiply
71,042.14x = 106,563.18 × 21,122.02 - Step 4: Simplify right side
71,042.14x = 2,250,829,619.22 - Step 5: Solve for x
x = 2,250,829,619.22/71,042.14 - Step 6: Final answer
x = 31,683.02
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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.