Finding the Fourth Proportional to 75,330.30, 112,996.08 and 19,170.48
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Solution
The fourth proportional to 75,330.30, 112,996.08 and 19,170.48 is: 28,755.88
Step by Step Solution
- Step 1: Write the proportion equation
75,330.30 : 112,996.08 = 19,170.48 : x - Step 2: Convert to fraction form
75,330.30/112,996.08 = 19,170.48/x - Step 3: Cross multiply
75,330.30x = 112,996.08 × 19,170.48 - Step 4: Simplify right side
75,330.30x = 2,166,189,091.72 - Step 5: Solve for x
x = 2,166,189,091.72/75,330.30 - Step 6: Final answer
x = 28,755.88
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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.