Finding the Fourth Proportional to 88,961.91, 122,768.94 and 48,679.18
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Solution
The fourth proportional to 88,961.91, 122,768.94 and 48,679.18 is: 67,178.09
Step by Step Solution
- Step 1: Write the proportion equation
88,961.91 : 122,768.94 = 48,679.18 : x - Step 2: Convert to fraction form
88,961.91/122,768.94 = 48,679.18/x - Step 3: Cross multiply
88,961.91x = 122,768.94 × 48,679.18 - Step 4: Simplify right side
88,961.91x = 5,976,291,328.67 - Step 5: Solve for x
x = 5,976,291,328.67/88,961.91 - Step 6: Final answer
x = 67,178.09
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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.