Finding the Fourth Proportional to 85,253.40, 117,618.84 and 49,423.68
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Solution
The fourth proportional to 85,253.40, 117,618.84 and 49,423.68 is: 68,186.79
Step by Step Solution
- Step 1: Write the proportion equation
85,253.40 : 117,618.84 = 49,423.68 : x - Step 2: Convert to fraction form
85,253.40/117,618.84 = 49,423.68/x - Step 3: Cross multiply
85,253.40x = 117,618.84 × 49,423.68 - Step 4: Simplify right side
85,253.40x = 5,813,155,910.13 - Step 5: Solve for x
x = 5,813,155,910.13/85,253.40 - Step 6: Final answer
x = 68,186.79
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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.