Finding the Fourth Proportional to 85,363.36, 117,789.84 and 49,547.68
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Solution
The fourth proportional to 85,363.36, 117,789.84 and 49,547.68 is: 68,369.07
Step by Step Solution
- Step 1: Write the proportion equation
85,363.36 : 117,789.84 = 49,547.68 : x - Step 2: Convert to fraction form
85,363.36/117,789.84 = 49,547.68/x - Step 3: Cross multiply
85,363.36x = 117,789.84 × 49,547.68 - Step 4: Simplify right side
85,363.36x = 5,836,213,299.57 - Step 5: Solve for x
x = 5,836,213,299.57/85,363.36 - Step 6: Final answer
x = 68,369.07
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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.