Finding the Fourth Proportional to 71,700.80, 107,536.80 and 34,260.80
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Solution
The fourth proportional to 71,700.80, 107,536.80 and 34,260.80 is: 51,384.32
Step by Step Solution
- Step 1: Write the proportion equation
71,700.80 : 107,536.80 = 34,260.80 : x - Step 2: Convert to fraction form
71,700.80/107,536.80 = 34,260.80/x - Step 3: Cross multiply
71,700.80x = 107,536.80 × 34,260.80 - Step 4: Simplify right side
71,700.80x = 3,684,296,797.44 - Step 5: Solve for x
x = 3,684,296,797.44/71,700.80 - Step 6: Final answer
x = 51,384.32
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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.