Finding the Fourth Proportional to 91,486.70, 126,252.28 and 51,204.19
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Solution
The fourth proportional to 91,486.70, 126,252.28 and 51,204.19 is: 70,662.14
Step by Step Solution
- Step 1: Write the proportion equation
91,486.70 : 126,252.28 = 51,204.19 : x - Step 2: Convert to fraction form
91,486.70/126,252.28 = 51,204.19/x - Step 3: Cross multiply
91,486.70x = 126,252.28 × 51,204.19 - Step 4: Simplify right side
91,486.70x = 6,464,645,733.05 - Step 5: Solve for x
x = 6,464,645,733.05/91,486.70 - Step 6: Final answer
x = 70,662.14
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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.