Finding the Fourth Proportional to 75,310.40, 112,965.76 and 22,719.96
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Solution
The fourth proportional to 75,310.40, 112,965.76 and 22,719.96 is: 34,079.99
Step by Step Solution
- Step 1: Write the proportion equation
75,310.40 : 112,965.76 = 22,719.96 : x - Step 2: Convert to fraction form
75,310.40/112,965.76 = 22,719.96/x - Step 3: Cross multiply
75,310.40x = 112,965.76 × 22,719.96 - Step 4: Simplify right side
75,310.40x = 2,566,577,548.57 - Step 5: Solve for x
x = 2,566,577,548.57/75,310.40 - Step 6: Final answer
x = 34,079.99
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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.