Finding the Fourth Proportional to 86,108.77, 129,222.74 and 33,518.53
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Solution
The fourth proportional to 86,108.77, 129,222.74 and 33,518.53 is: 50,300.99
Step by Step Solution
- Step 1: Write the proportion equation
86,108.77 : 129,222.74 = 33,518.53 : x - Step 2: Convert to fraction form
86,108.77/129,222.74 = 33,518.53/x - Step 3: Cross multiply
86,108.77x = 129,222.74 × 33,518.53 - Step 4: Simplify right side
86,108.77x = 4,331,356,287.37 - Step 5: Solve for x
x = 4,331,356,287.37/86,108.77 - Step 6: Final answer
x = 50,300.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.