Finding the Fourth Proportional to 97,280.40, 134,245.15 and 54,838.96
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Solution
The fourth proportional to 97,280.40, 134,245.15 and 54,838.96 is: 75,676.75
Step by Step Solution
- Step 1: Write the proportion equation
97,280.40 : 134,245.15 = 54,838.96 : x - Step 2: Convert to fraction form
97,280.40/134,245.15 = 54,838.96/x - Step 3: Cross multiply
97,280.40x = 134,245.15 × 54,838.96 - Step 4: Simplify right side
97,280.40x = 7,361,864,411.04 - Step 5: Solve for x
x = 7,361,864,411.04/97,280.40 - Step 6: Final answer
x = 75,676.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.