Finding the Fourth Proportional to 79,811.38, 119,719.57 and 29,881.97
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Solution
The fourth proportional to 79,811.38, 119,719.57 and 29,881.97 is: 44,823.89
Step by Step Solution
- Step 1: Write the proportion equation
79,811.38 : 119,719.57 = 29,881.97 : x - Step 2: Convert to fraction form
79,811.38/119,719.57 = 29,881.97/x - Step 3: Cross multiply
79,811.38x = 119,719.57 × 29,881.97 - Step 4: Simplify right side
79,811.38x = 3,577,456,599.15 - Step 5: Solve for x
x = 3,577,456,599.15/79,811.38 - Step 6: Final answer
x = 44,823.89
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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.