Finding the Fourth Proportional to 73,081.68, 109,622.16 and 17,677.68
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Solution
The fourth proportional to 73,081.68, 109,622.16 and 17,677.68 is: 26,516.43
Step by Step Solution
- Step 1: Write the proportion equation
73,081.68 : 109,622.16 = 17,677.68 : x - Step 2: Convert to fraction form
73,081.68/109,622.16 = 17,677.68/x - Step 3: Cross multiply
73,081.68x = 109,622.16 × 17,677.68 - Step 4: Simplify right side
73,081.68x = 1,937,865,465.39 - Step 5: Solve for x
x = 1,937,865,465.39/73,081.68 - Step 6: Final answer
x = 26,516.43
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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.