Finding the Fourth Proportional to 85,983.69, 118,657.49 and 48,257.94
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Solution
The fourth proportional to 85,983.69, 118,657.49 and 48,257.94 is: 66,595.96
Step by Step Solution
- Step 1: Write the proportion equation
85,983.69 : 118,657.49 = 48,257.94 : x - Step 2: Convert to fraction form
85,983.69/118,657.49 = 48,257.94/x - Step 3: Cross multiply
85,983.69x = 118,657.49 × 48,257.94 - Step 4: Simplify right side
85,983.69x = 5,726,166,032.97 - Step 5: Solve for x
x = 5,726,166,032.97/85,983.69 - Step 6: Final answer
x = 66,595.96
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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.