Finding the Fourth Proportional to 80,211.21, 120,316.80 and 24,807.21
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Solution
The fourth proportional to 80,211.21, 120,316.80 and 24,807.21 is: 37,210.81
Step by Step Solution
- Step 1: Write the proportion equation
80,211.21 : 120,316.80 = 24,807.21 : x - Step 2: Convert to fraction form
80,211.21/120,316.80 = 24,807.21/x - Step 3: Cross multiply
80,211.21x = 120,316.80 × 24,807.21 - Step 4: Simplify right side
80,211.21x = 2,984,724,124.13 - Step 5: Solve for x
x = 2,984,724,124.13/80,211.21 - Step 6: Final answer
x = 37,210.81
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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.