Finding the Fourth Proportional to 76,228.58, 114,447.61 and 38,813.79
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Solution
The fourth proportional to 76,228.58, 114,447.61 and 38,813.79 is: 58,274.02
Step by Step Solution
- Step 1: Write the proportion equation
76,228.58 : 114,447.61 = 38,813.79 : x - Step 2: Convert to fraction form
76,228.58/114,447.61 = 38,813.79/x - Step 3: Cross multiply
76,228.58x = 114,447.61 × 38,813.79 - Step 4: Simplify right side
76,228.58x = 4,442,145,978.24 - Step 5: Solve for x
x = 4,442,145,978.24/76,228.58 - Step 6: Final answer
x = 58,274.02
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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.