Finding the Fourth Proportional to 81,513.11, 122,263.74 and 22,344.12
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Solution
The fourth proportional to 81,513.11, 122,263.74 and 22,344.12 is: 33,514.55
Step by Step Solution
- Step 1: Write the proportion equation
81,513.11 : 122,263.74 = 22,344.12 : x - Step 2: Convert to fraction form
81,513.11/122,263.74 = 22,344.12/x - Step 3: Cross multiply
81,513.11x = 122,263.74 × 22,344.12 - Step 4: Simplify right side
81,513.11x = 2,731,875,678.21 - Step 5: Solve for x
x = 2,731,875,678.21/81,513.11 - Step 6: Final answer
x = 33,514.55
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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.