Finding the Fourth Proportional to 79,358.76, 109,516.74 and 43,546.68
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Solution
The fourth proportional to 79,358.76, 109,516.74 and 43,546.68 is: 60,095.32
Step by Step Solution
- Step 1: Write the proportion equation
79,358.76 : 109,516.74 = 43,546.68 : x - Step 2: Convert to fraction form
79,358.76/109,516.74 = 43,546.68/x - Step 3: Cross multiply
79,358.76x = 109,516.74 × 43,546.68 - Step 4: Simplify right side
79,358.76x = 4,769,090,431.42 - Step 5: Solve for x
x = 4,769,090,431.42/79,358.76 - Step 6: Final answer
x = 60,095.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.