Finding the Fourth Proportional to 81,264.36, 121,822.74 and 36,866.96
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Solution
The fourth proportional to 81,264.36, 121,822.74 and 36,866.96 is: 55,266.96
Step by Step Solution
- Step 1: Write the proportion equation
81,264.36 : 121,822.74 = 36,866.96 : x - Step 2: Convert to fraction form
81,264.36/121,822.74 = 36,866.96/x - Step 3: Cross multiply
81,264.36x = 121,822.74 × 36,866.96 - Step 4: Simplify right side
81,264.36x = 4,491,234,082.67 - Step 5: Solve for x
x = 4,491,234,082.67/81,264.36 - Step 6: Final answer
x = 55,266.96
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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.