Finding the Fourth Proportional to 76,757.42, 114,995.85 and 55,645.09
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Solution
The fourth proportional to 76,757.42, 114,995.85 and 55,645.09 is: 83,365.94
Step by Step Solution
- Step 1: Write the proportion equation
76,757.42 : 114,995.85 = 55,645.09 : x - Step 2: Convert to fraction form
76,757.42/114,995.85 = 55,645.09/x - Step 3: Cross multiply
76,757.42x = 114,995.85 × 55,645.09 - Step 4: Simplify right side
76,757.42x = 6,398,954,886.57 - Step 5: Solve for x
x = 6,398,954,886.57/76,757.42 - Step 6: Final answer
x = 83,365.94
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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.