Finding the Fourth Proportional to 83,704.59, 115,461.18 and 49,689.99
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Solution
The fourth proportional to 83,704.59, 115,461.18 and 49,689.99 is: 68,541.82
Step by Step Solution
- Step 1: Write the proportion equation
83,704.59 : 115,461.18 = 49,689.99 : x - Step 2: Convert to fraction form
83,704.59/115,461.18 = 49,689.99/x - Step 3: Cross multiply
83,704.59x = 115,461.18 × 49,689.99 - Step 4: Simplify right side
83,704.59x = 5,737,264,879.59 - Step 5: Solve for x
x = 5,737,264,879.59/83,704.59 - Step 6: Final answer
x = 68,541.82
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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.