Finding the Fourth Proportional to 68,245.20, 102,367.80 and 62,340.30
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Solution
The fourth proportional to 68,245.20, 102,367.80 and 62,340.30 is: 93,510.45
Step by Step Solution
- Step 1: Write the proportion equation
68,245.20 : 102,367.80 = 62,340.30 : x - Step 2: Convert to fraction form
68,245.20/102,367.80 = 62,340.30/x - Step 3: Cross multiply
68,245.20x = 102,367.80 × 62,340.30 - Step 4: Simplify right side
68,245.20x = 6,381,639,362.34 - Step 5: Solve for x
x = 6,381,639,362.34/68,245.20 - Step 6: Final answer
x = 93,510.45
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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.