Finding the Fourth Proportional to 75,531.36, 104,136.96 and 47,226.72
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Solution
The fourth proportional to 75,531.36, 104,136.96 and 47,226.72 is: 65,112.65
Step by Step Solution
- Step 1: Write the proportion equation
75,531.36 : 104,136.96 = 47,226.72 : x - Step 2: Convert to fraction form
75,531.36/104,136.96 = 47,226.72/x - Step 3: Cross multiply
75,531.36x = 104,136.96 × 47,226.72 - Step 4: Simplify right side
75,531.36x = 4,918,047,051.57 - Step 5: Solve for x
x = 4,918,047,051.57/75,531.36 - Step 6: Final answer
x = 65,112.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.