Finding the Fourth Proportional to 84,125.36, 126,244.16 and 43,636.19
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Solution
The fourth proportional to 84,125.36, 126,244.16 and 43,636.19 is: 65,483.39
Step by Step Solution
- Step 1: Write the proportion equation
84,125.36 : 126,244.16 = 43,636.19 : x - Step 2: Convert to fraction form
84,125.36/126,244.16 = 43,636.19/x - Step 3: Cross multiply
84,125.36x = 126,244.16 × 43,636.19 - Step 4: Simplify right side
84,125.36x = 5,508,813,933.97 - Step 5: Solve for x
x = 5,508,813,933.97/84,125.36 - Step 6: Final answer
x = 65,483.39
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1.5x scale
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.