Finding the Fourth Proportional to 76,838.80, 115,272.12 and 37,395.92
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Solution
The fourth proportional to 76,838.80, 115,272.12 and 37,395.92 is: 56,100.65
Step by Step Solution
- Step 1: Write the proportion equation
76,838.80 : 115,272.12 = 37,395.92 : x - Step 2: Convert to fraction form
76,838.80/115,272.12 = 37,395.92/x - Step 3: Cross multiply
76,838.80x = 115,272.12 × 37,395.92 - Step 4: Simplify right side
76,838.80x = 4,310,706,977.75 - Step 5: Solve for x
x = 4,310,706,977.75/76,838.80 - Step 6: Final answer
x = 56,100.65
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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.