Finding the Fourth Proportional to 89,982.18, 124,176.60 and 49,695.81
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Solution
The fourth proportional to 89,982.18, 124,176.60 and 49,695.81 is: 68,580.88
Step by Step Solution
- Step 1: Write the proportion equation
89,982.18 : 124,176.60 = 49,695.81 : x - Step 2: Convert to fraction form
89,982.18/124,176.60 = 49,695.81/x - Step 3: Cross multiply
89,982.18x = 124,176.60 × 49,695.81 - Step 4: Simplify right side
89,982.18x = 6,171,056,720.05 - Step 5: Solve for x
x = 6,171,056,720.05/89,982.18 - Step 6: Final answer
x = 68,580.88
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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.