Finding the Fourth Proportional to 76,939.60, 115,421.28 and 32,566.64
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Solution
The fourth proportional to 76,939.60, 115,421.28 and 32,566.64 is: 48,854.99
Step by Step Solution
- Step 1: Write the proportion equation
76,939.60 : 115,421.28 = 32,566.64 : x - Step 2: Convert to fraction form
76,939.60/115,421.28 = 32,566.64/x - Step 3: Cross multiply
76,939.60x = 115,421.28 × 32,566.64 - Step 4: Simplify right side
76,939.60x = 3,758,883,274.10 - Step 5: Solve for x
x = 3,758,883,274.10/76,939.60 - Step 6: Final answer
x = 48,854.99
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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.