Finding the Fourth Proportional to 71,052.80, 106,486.65 and 28,883.63
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Solution
The fourth proportional to 71,052.80, 106,486.65 and 28,883.63 is: 43,287.82
Step by Step Solution
- Step 1: Write the proportion equation
71,052.80 : 106,486.65 = 28,883.63 : x - Step 2: Convert to fraction form
71,052.80/106,486.65 = 28,883.63/x - Step 3: Cross multiply
71,052.80x = 106,486.65 × 28,883.63 - Step 4: Simplify right side
71,052.80x = 3,075,720,629.66 - Step 5: Solve for x
x = 3,075,720,629.66/71,052.80 - Step 6: Final answer
x = 43,287.82
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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.