Finding the Fourth Proportional to 97,961.79, 135,198.62 and 54,953.09
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Solution
The fourth proportional to 97,961.79, 135,198.62 and 54,953.09 is: 75,841.63
Step by Step Solution
- Step 1: Write the proportion equation
97,961.79 : 135,198.62 = 54,953.09 : x - Step 2: Convert to fraction form
97,961.79/135,198.62 = 54,953.09/x - Step 3: Cross multiply
97,961.79x = 135,198.62 × 54,953.09 - Step 4: Simplify right side
97,961.79x = 7,429,581,932.74 - Step 5: Solve for x
x = 7,429,581,932.74/97,961.79 - Step 6: Final answer
x = 75,841.63
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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.