Finding the Fourth Proportional to 76,772.78, 115,163.28 and 24,186.38
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Solution
The fourth proportional to 76,772.78, 115,163.28 and 24,186.38 is: 36,280.86
Step by Step Solution
- Step 1: Write the proportion equation
76,772.78 : 115,163.28 = 24,186.38 : x - Step 2: Convert to fraction form
76,772.78/115,163.28 = 24,186.38/x - Step 3: Cross multiply
76,772.78x = 115,163.28 × 24,186.38 - Step 4: Simplify right side
76,772.78x = 2,785,382,852.13 - Step 5: Solve for x
x = 2,785,382,852.13/76,772.78 - Step 6: Final answer
x = 36,280.86
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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.