Finding the Fourth Proportional to 91,857.73, 137,786.55 and 29,533.09
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Solution
The fourth proportional to 91,857.73, 137,786.55 and 29,533.09 is: 44,299.62
Step by Step Solution
- Step 1: Write the proportion equation
91,857.73 : 137,786.55 = 29,533.09 : x - Step 2: Convert to fraction form
91,857.73/137,786.55 = 29,533.09/x - Step 3: Cross multiply
91,857.73x = 137,786.55 × 29,533.09 - Step 4: Simplify right side
91,857.73x = 4,069,262,581.94 - Step 5: Solve for x
x = 4,069,262,581.94/91,857.73 - Step 6: Final answer
x = 44,299.62
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1.5x scale
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.