Finding the Fourth Proportional to 68,331.20, 102,496.80 and 65,706.80
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Solution
The fourth proportional to 68,331.20, 102,496.80 and 65,706.80 is: 98,560.20
Step by Step Solution
- Step 1: Write the proportion equation
68,331.20 : 102,496.80 = 65,706.80 : x - Step 2: Convert to fraction form
68,331.20/102,496.80 = 65,706.80/x - Step 3: Cross multiply
68,331.20x = 102,496.80 × 65,706.80 - Step 4: Simplify right side
68,331.20x = 6,734,736,738.24 - Step 5: Solve for x
x = 6,734,736,738.24/68,331.20 - Step 6: Final answer
x = 98,560.20
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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.