Finding the Fourth Proportional to 68,608.80, 102,913.20 and 63,943.20
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Solution
The fourth proportional to 68,608.80, 102,913.20 and 63,943.20 is: 95,914.80
Step by Step Solution
- Step 1: Write the proportion equation
68,608.80 : 102,913.20 = 63,943.20 : x - Step 2: Convert to fraction form
68,608.80/102,913.20 = 63,943.20/x - Step 3: Cross multiply
68,608.80x = 102,913.20 × 63,943.20 - Step 4: Simplify right side
68,608.80x = 6,580,599,330.24 - Step 5: Solve for x
x = 6,580,599,330.24/68,608.80 - Step 6: Final answer
x = 95,914.80
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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.