Finding the Fourth Proportional to 75,172.19, 112,497.21 and 46,697.45
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Solution
The fourth proportional to 75,172.19, 112,497.21 and 46,697.45 is: 69,883.99
Step by Step Solution
- Step 1: Write the proportion equation
75,172.19 : 112,497.21 = 46,697.45 : x - Step 2: Convert to fraction form
75,172.19/112,497.21 = 46,697.45/x - Step 3: Cross multiply
75,172.19x = 112,497.21 × 46,697.45 - Step 4: Simplify right side
75,172.19x = 5,253,332,276.63 - Step 5: Solve for x
x = 5,253,332,276.63/75,172.19 - Step 6: Final answer
x = 69,883.99
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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.