Finding the Fourth Proportional to 86,218.24, 118,981.20 and 48,492.52
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Solution
The fourth proportional to 86,218.24, 118,981.20 and 48,492.52 is: 66,919.69
Step by Step Solution
- Step 1: Write the proportion equation
86,218.24 : 118,981.20 = 48,492.52 : x - Step 2: Convert to fraction form
86,218.24/118,981.20 = 48,492.52/x - Step 3: Cross multiply
86,218.24x = 118,981.20 × 48,492.52 - Step 4: Simplify right side
86,218.24x = 5,769,698,220.62 - Step 5: Solve for x
x = 5,769,698,220.62/86,218.24 - Step 6: Final answer
x = 66,919.69
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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.