Finding the Fourth Proportional to 81,748.31, 122,624.76 and 22,583.99
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Solution
The fourth proportional to 81,748.31, 122,624.76 and 22,583.99 is: 33,876.62
Step by Step Solution
- Step 1: Write the proportion equation
81,748.31 : 122,624.76 = 22,583.99 : x - Step 2: Convert to fraction form
81,748.31/122,624.76 = 22,583.99/x - Step 3: Cross multiply
81,748.31x = 122,624.76 × 22,583.99 - Step 4: Simplify right side
81,748.31x = 2,769,356,353.59 - Step 5: Solve for x
x = 2,769,356,353.59/81,748.31 - Step 6: Final answer
x = 33,876.62
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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.