Finding the Fourth Proportional to 87,957.92, 121,382.08 and 47,671.68
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Solution
The fourth proportional to 87,957.92, 121,382.08 and 47,671.68 is: 65,787.00
Step by Step Solution
- Step 1: Write the proportion equation
87,957.92 : 121,382.08 = 47,671.68 : x - Step 2: Convert to fraction form
87,957.92/121,382.08 = 47,671.68/x - Step 3: Cross multiply
87,957.92x = 121,382.08 × 47,671.68 - Step 4: Simplify right side
87,957.92x = 5,786,487,675.49 - Step 5: Solve for x
x = 5,786,487,675.49/87,957.92 - Step 6: Final answer
x = 65,787.00
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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.