Finding the Fourth Proportional to 75,685.44, 103,689.57 and 72,847.83
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Solution
The fourth proportional to 75,685.44, 103,689.57 and 72,847.83 is: 99,802.02
Step by Step Solution
- Step 1: Write the proportion equation
75,685.44 : 103,689.57 = 72,847.83 : x - Step 2: Convert to fraction form
75,685.44/103,689.57 = 72,847.83/x - Step 3: Cross multiply
75,685.44x = 103,689.57 × 72,847.83 - Step 4: Simplify right side
75,685.44x = 7,553,560,168.13 - Step 5: Solve for x
x = 7,553,560,168.13/75,685.44 - Step 6: Final answer
x = 99,802.02
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.