Finding the Fourth Proportional to 68,521.47, 102,790.44 and 24,139.05
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Solution
The fourth proportional to 68,521.47, 102,790.44 and 24,139.05 is: 36,211.48
Step by Step Solution
- Step 1: Write the proportion equation
68,521.47 : 102,790.44 = 24,139.05 : x - Step 2: Convert to fraction form
68,521.47/102,790.44 = 24,139.05/x - Step 3: Cross multiply
68,521.47x = 102,790.44 × 24,139.05 - Step 4: Simplify right side
68,521.47x = 2,481,263,570.68 - Step 5: Solve for x
x = 2,481,263,570.68/68,521.47 - Step 6: Final answer
x = 36,211.48
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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.