Finding the Fourth Proportional to 77,175.60, 115,763.40 and 32,803.80
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Solution
The fourth proportional to 77,175.60, 115,763.40 and 32,803.80 is: 49,205.70
Step by Step Solution
- Step 1: Write the proportion equation
77,175.60 : 115,763.40 = 32,803.80 : x - Step 2: Convert to fraction form
77,175.60/115,763.40 = 32,803.80/x - Step 3: Cross multiply
77,175.60x = 115,763.40 × 32,803.80 - Step 4: Simplify right side
77,175.60x = 3,797,479,420.92 - Step 5: Solve for x
x = 3,797,479,420.92/77,175.60 - Step 6: Final answer
x = 49,205.70
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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.