Finding the Fourth Proportional to 76,938.96, 115,322.16 and 50,336.07
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Solution
The fourth proportional to 76,938.96, 115,322.16 and 50,336.07 is: 75,447.66
Step by Step Solution
- Step 1: Write the proportion equation
76,938.96 : 115,322.16 = 50,336.07 : x - Step 2: Convert to fraction form
76,938.96/115,322.16 = 50,336.07/x - Step 3: Cross multiply
76,938.96x = 115,322.16 × 50,336.07 - Step 4: Simplify right side
76,938.96x = 5,804,864,318.31 - Step 5: Solve for x
x = 5,804,864,318.31/76,938.96 - Step 6: Final answer
x = 75,447.66
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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.