Finding the Fourth Proportional to 76,471.12, 105,516.12 and 46,252.18
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Solution
The fourth proportional to 76,471.12, 105,516.12 and 46,252.18 is: 63,819.53
Step by Step Solution
- Step 1: Write the proportion equation
76,471.12 : 105,516.12 = 46,252.18 : x - Step 2: Convert to fraction form
76,471.12/105,516.12 = 46,252.18/x - Step 3: Cross multiply
76,471.12x = 105,516.12 × 46,252.18 - Step 4: Simplify right side
76,471.12x = 4,880,350,575.14 - Step 5: Solve for x
x = 4,880,350,575.14/76,471.12 - Step 6: Final answer
x = 63,819.53
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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.