Finding the Fourth Proportional to 75,019.20, 112,513.52 and 27,618.08
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Solution
The fourth proportional to 75,019.20, 112,513.52 and 27,618.08 is: 41,421.49
Step by Step Solution
- Step 1: Write the proportion equation
75,019.20 : 112,513.52 = 27,618.08 : x - Step 2: Convert to fraction form
75,019.20/112,513.52 = 27,618.08/x - Step 3: Cross multiply
75,019.20x = 112,513.52 × 27,618.08 - Step 4: Simplify right side
75,019.20x = 3,107,407,396.44 - Step 5: Solve for x
x = 3,107,407,396.44/75,019.20 - Step 6: Final answer
x = 41,421.49
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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.