Finding the Fourth Proportional to 84,154.06, 116,142.88 and 48,343.99
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Solution
The fourth proportional to 84,154.06, 116,142.88 and 48,343.99 is: 66,720.61
Step by Step Solution
- Step 1: Write the proportion equation
84,154.06 : 116,142.88 = 48,343.99 : x - Step 2: Convert to fraction form
84,154.06/116,142.88 = 48,343.99/x - Step 3: Cross multiply
84,154.06x = 116,142.88 × 48,343.99 - Step 4: Simplify right side
84,154.06x = 5,614,810,229.29 - Step 5: Solve for x
x = 5,614,810,229.29/84,154.06 - Step 6: Final answer
x = 66,720.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.