Finding the Fourth Proportional to 87,927.99, 131,753.65 and 67,986.19
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Solution
The fourth proportional to 87,927.99, 131,753.65 and 67,986.19 is: 101,872.32
Step by Step Solution
- Step 1: Write the proportion equation
87,927.99 : 131,753.65 = 67,986.19 : x - Step 2: Convert to fraction form
87,927.99/131,753.65 = 67,986.19/x - Step 3: Cross multiply
87,927.99x = 131,753.65 × 67,986.19 - Step 4: Simplify right side
87,927.99x = 8,957,428,682.09 - Step 5: Solve for x
x = 8,957,428,682.09/87,927.99 - Step 6: Final answer
x = 101,872.32
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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.