Finding the Fourth Proportional to 90,179.00, 135,286.96 and 31,006.99
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Solution
The fourth proportional to 90,179.00, 135,286.96 and 31,006.99 is: 46,516.82
Step by Step Solution
- Step 1: Write the proportion equation
90,179.00 : 135,286.96 = 31,006.99 : x - Step 2: Convert to fraction form
90,179.00/135,286.96 = 31,006.99/x - Step 3: Cross multiply
90,179.00x = 135,286.96 × 31,006.99 - Step 4: Simplify right side
90,179.00x = 4,194,840,804.59 - Step 5: Solve for x
x = 4,194,840,804.59/90,179.00 - Step 6: Final answer
x = 46,516.82
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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.