Finding the Fourth Proportional to 67,872.20, 101,808.30 and 63,465.80
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Solution
The fourth proportional to 67,872.20, 101,808.30 and 63,465.80 is: 95,198.70
Step by Step Solution
- Step 1: Write the proportion equation
67,872.20 : 101,808.30 = 63,465.80 : x - Step 2: Convert to fraction form
67,872.20/101,808.30 = 63,465.80/x - Step 3: Cross multiply
67,872.20x = 101,808.30 × 63,465.80 - Step 4: Simplify right side
67,872.20x = 6,461,345,206.14 - Step 5: Solve for x
x = 6,461,345,206.14/67,872.20 - Step 6: Final answer
x = 95,198.70
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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.