Finding the Fourth Proportional to 71,075.97, 106,613.41 and 28,946.14
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Solution
The fourth proportional to 71,075.97, 106,613.41 and 28,946.14 is: 43,418.99
Step by Step Solution
- Step 1: Write the proportion equation
71,075.97 : 106,613.41 = 28,946.14 : x - Step 2: Convert to fraction form
71,075.97/106,613.41 = 28,946.14/x - Step 3: Cross multiply
71,075.97x = 106,613.41 × 28,946.14 - Step 4: Simplify right side
71,075.97x = 3,086,046,691.74 - Step 5: Solve for x
x = 3,086,046,691.74/71,075.97 - Step 6: Final answer
x = 43,418.99
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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.