Finding the Fourth Proportional to 88,981.08, 122,781.75 and 53,163.48
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Solution
The fourth proportional to 88,981.08, 122,781.75 and 53,163.48 is: 73,358.35
Step by Step Solution
- Step 1: Write the proportion equation
88,981.08 : 122,781.75 = 53,163.48 : x - Step 2: Convert to fraction form
88,981.08/122,781.75 = 53,163.48/x - Step 3: Cross multiply
88,981.08x = 122,781.75 × 53,163.48 - Step 4: Simplify right side
88,981.08x = 6,527,505,110.49 - Step 5: Solve for x
x = 6,527,505,110.49/88,981.08 - Step 6: Final answer
x = 73,358.35
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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.