Finding the Fourth Proportional to 89,478.92, 134,119.92 and 36,859.70
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Solution
The fourth proportional to 89,478.92, 134,119.92 and 36,859.70 is: 55,248.99
Step by Step Solution
- Step 1: Write the proportion equation
89,478.92 : 134,119.92 = 36,859.70 : x - Step 2: Convert to fraction form
89,478.92/134,119.92 = 36,859.70/x - Step 3: Cross multiply
89,478.92x = 134,119.92 × 36,859.70 - Step 4: Simplify right side
89,478.92x = 4,943,620,015.22 - Step 5: Solve for x
x = 4,943,620,015.22/89,478.92 - Step 6: Final answer
x = 55,248.99
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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.