Finding the Fourth Proportional to 98,770.10, 136,301.69 and 53,447.09
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Solution
The fourth proportional to 98,770.10, 136,301.69 and 53,447.09 is: 73,756.42
Step by Step Solution
- Step 1: Write the proportion equation
98,770.10 : 136,301.69 = 53,447.09 : x - Step 2: Convert to fraction form
98,770.10/136,301.69 = 53,447.09/x - Step 3: Cross multiply
98,770.10x = 136,301.69 × 53,447.09 - Step 4: Simplify right side
98,770.10x = 7,284,928,144.69 - Step 5: Solve for x
x = 7,284,928,144.69/98,770.10 - Step 6: Final answer
x = 73,756.42
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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.