Finding the Fourth Proportional to 70,126.20, 105,121.26 and 27,994.08
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Solution
The fourth proportional to 70,126.20, 105,121.26 and 27,994.08 is: 41,963.96
Step by Step Solution
- Step 1: Write the proportion equation
70,126.20 : 105,121.26 = 27,994.08 : x - Step 2: Convert to fraction form
70,126.20/105,121.26 = 27,994.08/x - Step 3: Cross multiply
70,126.20x = 105,121.26 × 27,994.08 - Step 4: Simplify right side
70,126.20x = 2,942,772,962.14 - Step 5: Solve for x
x = 2,942,772,962.14/70,126.20 - Step 6: Final answer
x = 41,963.96
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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.