Finding the Fourth Proportional to 76,154.68, 114,232.20 and 20,750.68
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Solution
The fourth proportional to 76,154.68, 114,232.20 and 20,750.68 is: 31,126.07
Step by Step Solution
- Step 1: Write the proportion equation
76,154.68 : 114,232.20 = 20,750.68 : x - Step 2: Convert to fraction form
76,154.68/114,232.20 = 20,750.68/x - Step 3: Cross multiply
76,154.68x = 114,232.20 × 20,750.68 - Step 4: Simplify right side
76,154.68x = 2,370,395,827.90 - Step 5: Solve for x
x = 2,370,395,827.90/76,154.68 - Step 6: Final answer
x = 31,126.07
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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.