Finding the Fourth Proportional to 76,836.41, 115,175.68 and 29,438.66
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Solution
The fourth proportional to 76,836.41, 115,175.68 and 29,438.66 is: 44,127.74
Step by Step Solution
- Step 1: Write the proportion equation
76,836.41 : 115,175.68 = 29,438.66 : x - Step 2: Convert to fraction form
76,836.41/115,175.68 = 29,438.66/x - Step 3: Cross multiply
76,836.41x = 115,175.68 × 29,438.66 - Step 4: Simplify right side
76,836.41x = 3,390,617,034.31 - Step 5: Solve for x
x = 3,390,617,034.31/76,836.41 - Step 6: Final answer
x = 44,127.74
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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.