Finding the Fourth Proportional to 76,803.66, 115,276.77 and 39,391.38
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Solution
The fourth proportional to 76,803.66, 115,276.77 and 39,391.38 is: 59,123.63
Step by Step Solution
- Step 1: Write the proportion equation
76,803.66 : 115,276.77 = 39,391.38 : x - Step 2: Convert to fraction form
76,803.66/115,276.77 = 39,391.38/x - Step 3: Cross multiply
76,803.66x = 115,276.77 × 39,391.38 - Step 4: Simplify right side
76,803.66x = 4,540,911,052.24 - Step 5: Solve for x
x = 4,540,911,052.24/76,803.66 - Step 6: Final answer
x = 59,123.63
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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.