Finding the Fourth Proportional to 87,487.94, 120,737.28 and 49,260.63
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Solution
The fourth proportional to 87,487.94, 120,737.28 and 49,260.63 is: 67,981.88
Step by Step Solution
- Step 1: Write the proportion equation
87,487.94 : 120,737.28 = 49,260.63 : x - Step 2: Convert to fraction form
87,487.94/120,737.28 = 49,260.63/x - Step 3: Cross multiply
87,487.94x = 120,737.28 × 49,260.63 - Step 4: Simplify right side
87,487.94x = 5,947,594,477.29 - Step 5: Solve for x
x = 5,947,594,477.29/87,487.94 - Step 6: Final answer
x = 67,981.88
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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.