Finding the Fourth Proportional to 70,891.80, 106,337.67 and 20,967.99
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Solution
The fourth proportional to 70,891.80, 106,337.67 and 20,967.99 is: 31,451.98
Step by Step Solution
- Step 1: Write the proportion equation
70,891.80 : 106,337.67 = 20,967.99 : x - Step 2: Convert to fraction form
70,891.80/106,337.67 = 20,967.99/x - Step 3: Cross multiply
70,891.80x = 106,337.67 × 20,967.99 - Step 4: Simplify right side
70,891.80x = 2,229,687,201.18 - Step 5: Solve for x
x = 2,229,687,201.18/70,891.80 - Step 6: Final answer
x = 31,451.98
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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.