Finding the Fourth Proportional to 75,661.88, 104,441.94 and 59,486.99
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Solution
The fourth proportional to 75,661.88, 104,441.94 and 59,486.99 is: 82,114.49
Step by Step Solution
- Step 1: Write the proportion equation
75,661.88 : 104,441.94 = 59,486.99 : x - Step 2: Convert to fraction form
75,661.88/104,441.94 = 59,486.99/x - Step 3: Cross multiply
75,661.88x = 104,441.94 × 59,486.99 - Step 4: Simplify right side
75,661.88x = 6,212,936,118.15 - Step 5: Solve for x
x = 6,212,936,118.15/75,661.88 - Step 6: Final answer
x = 82,114.49
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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.