Finding the Fourth Proportional to 71,452.80, 107,118.72 and 27,055.08
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Solution
The fourth proportional to 71,452.80, 107,118.72 and 27,055.08 is: 40,559.72
Step by Step Solution
- Step 1: Write the proportion equation
71,452.80 : 107,118.72 = 27,055.08 : x - Step 2: Convert to fraction form
71,452.80/107,118.72 = 27,055.08/x - Step 3: Cross multiply
71,452.80x = 107,118.72 × 27,055.08 - Step 4: Simplify right side
71,452.80x = 2,898,105,539.10 - Step 5: Solve for x
x = 2,898,105,539.10/71,452.80 - Step 6: Final answer
x = 40,559.72
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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.