Finding the Fourth Proportional to 68,277.20, 102,415.80 and 44,657.60
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Solution
The fourth proportional to 68,277.20, 102,415.80 and 44,657.60 is: 66,986.40
Step by Step Solution
- Step 1: Write the proportion equation
68,277.20 : 102,415.80 = 44,657.60 : x - Step 2: Convert to fraction form
68,277.20/102,415.80 = 44,657.60/x - Step 3: Cross multiply
68,277.20x = 102,415.80 × 44,657.60 - Step 4: Simplify right side
68,277.20x = 4,573,643,830.08 - Step 5: Solve for x
x = 4,573,643,830.08/68,277.20 - Step 6: Final answer
x = 66,986.40
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1.5x scale
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.