Finding the Fourth Proportional to 87,655.99, 120,957.97 and 48,891.42
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Solution
The fourth proportional to 87,655.99, 120,957.97 and 48,891.42 is: 67,466.09
Step by Step Solution
- Step 1: Write the proportion equation
87,655.99 : 120,957.97 = 48,891.42 : x - Step 2: Convert to fraction form
87,655.99/120,957.97 = 48,891.42/x - Step 3: Cross multiply
87,655.99x = 120,957.97 × 48,891.42 - Step 4: Simplify right side
87,655.99x = 5,913,806,913.62 - Step 5: Solve for x
x = 5,913,806,913.62/87,655.99 - Step 6: Final answer
x = 67,466.09
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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.