Finding the Fourth Proportional to 87,703.92, 131,472.36 and 28,497.96
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Solution
The fourth proportional to 87,703.92, 131,472.36 and 28,497.96 is: 42,719.80
Step by Step Solution
- Step 1: Write the proportion equation
87,703.92 : 131,472.36 = 28,497.96 : x - Step 2: Convert to fraction form
87,703.92/131,472.36 = 28,497.96/x - Step 3: Cross multiply
87,703.92x = 131,472.36 × 28,497.96 - Step 4: Simplify right side
87,703.92x = 3,746,694,056.39 - Step 5: Solve for x
x = 3,746,694,056.39/87,703.92 - Step 6: Final answer
x = 42,719.80
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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.