Finding the Fourth Proportional to 89,677.80, 123,756.19 and 49,392.99
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Solution
The fourth proportional to 89,677.80, 123,756.19 and 49,392.99 is: 68,162.78
Step by Step Solution
- Step 1: Write the proportion equation
89,677.80 : 123,756.19 = 49,392.99 : x - Step 2: Convert to fraction form
89,677.80/123,756.19 = 49,392.99/x - Step 3: Cross multiply
89,677.80x = 123,756.19 × 49,392.99 - Step 4: Simplify right side
89,677.80x = 6,112,688,131.63 - Step 5: Solve for x
x = 6,112,688,131.63/89,677.80 - Step 6: Final answer
x = 68,162.78
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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.