Finding the Fourth Proportional to 81,624.80, 122,424.80 and 27,588.79
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Solution
The fourth proportional to 81,624.80, 122,424.80 and 27,588.79 is: 41,378.99
Step by Step Solution
- Step 1: Write the proportion equation
81,624.80 : 122,424.80 = 27,588.79 : x - Step 2: Convert to fraction form
81,624.80/122,424.80 = 27,588.79/x - Step 3: Cross multiply
81,624.80x = 122,424.80 × 27,588.79 - Step 4: Simplify right side
81,624.80x = 3,377,552,097.99 - Step 5: Solve for x
x = 3,377,552,097.99/81,624.80 - Step 6: Final answer
x = 41,378.99
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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.