Finding the Fourth Proportional to 98,211.12, 135,526.52 and 55,764.08
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Solution
The fourth proportional to 98,211.12, 135,526.52 and 55,764.08 is: 76,951.69
Step by Step Solution
- Step 1: Write the proportion equation
98,211.12 : 135,526.52 = 55,764.08 : x - Step 2: Convert to fraction form
98,211.12/135,526.52 = 55,764.08/x - Step 3: Cross multiply
98,211.12x = 135,526.52 × 55,764.08 - Step 4: Simplify right side
98,211.12x = 7,557,511,703.40 - Step 5: Solve for x
x = 7,557,511,703.40/98,211.12 - Step 6: Final answer
x = 76,951.69
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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.