Finding the Fourth Proportional to 69,097.20, 103,479.70 and 39,425.08
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Solution
The fourth proportional to 69,097.20, 103,479.70 and 39,425.08 is: 59,042.84
Step by Step Solution
- Step 1: Write the proportion equation
69,097.20 : 103,479.70 = 39,425.08 : x - Step 2: Convert to fraction form
69,097.20/103,479.70 = 39,425.08/x - Step 3: Cross multiply
69,097.20x = 103,479.70 × 39,425.08 - Step 4: Simplify right side
69,097.20x = 4,079,694,933.48 - Step 5: Solve for x
x = 4,079,694,933.48/69,097.20 - Step 6: Final answer
x = 59,042.84
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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.