Finding the Fourth Proportional to 67,991.24, 101,951.84 and 30,519.19
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Solution
The fourth proportional to 67,991.24, 101,951.84 and 30,519.19 is: 45,763.07
Step by Step Solution
- Step 1: Write the proportion equation
67,991.24 : 101,951.84 = 30,519.19 : x - Step 2: Convert to fraction form
67,991.24/101,951.84 = 30,519.19/x - Step 3: Cross multiply
67,991.24x = 101,951.84 × 30,519.19 - Step 4: Simplify right side
67,991.24x = 3,111,487,575.81 - Step 5: Solve for x
x = 3,111,487,575.81/67,991.24 - Step 6: Final answer
x = 45,763.07
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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.