Finding the Fourth Proportional to 70,758.62, 106,052.49 and 31,270.94
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Solution
The fourth proportional to 70,758.62, 106,052.49 and 31,270.94 is: 46,868.65
Step by Step Solution
- Step 1: Write the proportion equation
70,758.62 : 106,052.49 = 31,270.94 : x - Step 2: Convert to fraction form
70,758.62/106,052.49 = 31,270.94/x - Step 3: Cross multiply
70,758.62x = 106,052.49 × 31,270.94 - Step 4: Simplify right side
70,758.62x = 3,316,361,051.64 - Step 5: Solve for x
x = 3,316,361,051.64/70,758.62 - Step 6: Final answer
x = 46,868.65
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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.