Finding the Fourth Proportional to 75,580.80, 104,344.68 and 50,121.76
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Solution
The fourth proportional to 75,580.80, 104,344.68 and 50,121.76 is: 69,196.66
Step by Step Solution
- Step 1: Write the proportion equation
75,580.80 : 104,344.68 = 50,121.76 : x - Step 2: Convert to fraction form
75,580.80/104,344.68 = 50,121.76/x - Step 3: Cross multiply
75,580.80x = 104,344.68 × 50,121.76 - Step 4: Simplify right side
75,580.80x = 5,229,939,008.24 - Step 5: Solve for x
x = 5,229,939,008.24/75,580.80 - Step 6: Final answer
x = 69,196.66
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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.