Finding the Fourth Proportional to 121,554.12, 182,329.73 and 31,588.91
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Solution
The fourth proportional to 121,554.12, 182,329.73 and 31,588.91 is: 47,382.99
Step by Step Solution
- Step 1: Write the proportion equation
121,554.12 : 182,329.73 = 31,588.91 : x - Step 2: Convert to fraction form
121,554.12/182,329.73 = 31,588.91/x - Step 3: Cross multiply
121,554.12x = 182,329.73 × 31,588.91 - Step 4: Simplify right side
121,554.12x = 5,759,597,431.29 - Step 5: Solve for x
x = 5,759,597,431.29/121,554.12 - Step 6: Final answer
x = 47,382.99
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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.