Finding the Fourth Proportional to 88,338.74, 121,910.46 and 50,620.28
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Solution
The fourth proportional to 88,338.74, 121,910.46 and 50,620.28 is: 69,857.70
Step by Step Solution
- Step 1: Write the proportion equation
88,338.74 : 121,910.46 = 50,620.28 : x - Step 2: Convert to fraction form
88,338.74/121,910.46 = 50,620.28/x - Step 3: Cross multiply
88,338.74x = 121,910.46 × 50,620.28 - Step 4: Simplify right side
88,338.74x = 6,171,141,620.13 - Step 5: Solve for x
x = 6,171,141,620.13/88,338.74 - Step 6: Final answer
x = 69,857.70
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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.