Finding the Fourth Proportional to 80,876.10, 121,328.73 and 27,565.14
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Solution
The fourth proportional to 80,876.10, 121,328.73 and 27,565.14 is: 41,352.68
Step by Step Solution
- Step 1: Write the proportion equation
80,876.10 : 121,328.73 = 27,565.14 : x - Step 2: Convert to fraction form
80,876.10/121,328.73 = 27,565.14/x - Step 3: Cross multiply
80,876.10x = 121,328.73 × 27,565.14 - Step 4: Simplify right side
80,876.10x = 3,344,443,428.47 - Step 5: Solve for x
x = 3,344,443,428.47/80,876.10 - Step 6: Final answer
x = 41,352.68
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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.