Finding the Fourth Proportional to 75,328.49, 112,999.39 and 27,944.12
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Solution
The fourth proportional to 75,328.49, 112,999.39 and 27,944.12 is: 41,918.65
Step by Step Solution
- Step 1: Write the proportion equation
75,328.49 : 112,999.39 = 27,944.12 : x - Step 2: Convert to fraction form
75,328.49/112,999.39 = 27,944.12/x - Step 3: Cross multiply
75,328.49x = 112,999.39 × 27,944.12 - Step 4: Simplify right side
75,328.49x = 3,157,668,726.72 - Step 5: Solve for x
x = 3,157,668,726.72/75,328.49 - Step 6: Final answer
x = 41,918.65
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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.