Finding the Fourth Proportional to 99,129.08, 136,794.42 and 53,806.09
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Solution
The fourth proportional to 99,129.08, 136,794.42 and 53,806.09 is: 74,250.38
Step by Step Solution
- Step 1: Write the proportion equation
99,129.08 : 136,794.42 = 53,806.09 : x - Step 2: Convert to fraction form
99,129.08/136,794.42 = 53,806.09/x - Step 3: Cross multiply
99,129.08x = 136,794.42 × 53,806.09 - Step 4: Simplify right side
99,129.08x = 7,360,372,211.42 - Step 5: Solve for x
x = 7,360,372,211.42/99,129.08 - Step 6: Final answer
x = 74,250.38
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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.