Finding the Fourth Proportional to 81,007.20, 121,495.14 and 24,833.70
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Solution
The fourth proportional to 81,007.20, 121,495.14 and 24,833.70 is: 37,245.75
Step by Step Solution
- Step 1: Write the proportion equation
81,007.20 : 121,495.14 = 24,833.70 : x - Step 2: Convert to fraction form
81,007.20/121,495.14 = 24,833.70/x - Step 3: Cross multiply
81,007.20x = 121,495.14 × 24,833.70 - Step 4: Simplify right side
81,007.20x = 3,017,173,858.22 - Step 5: Solve for x
x = 3,017,173,858.22/81,007.20 - Step 6: Final answer
x = 37,245.75
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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.