Finding the Fourth Proportional to 88,415.70, 122,013.68 and 48,129.76
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Solution
The fourth proportional to 88,415.70, 122,013.68 and 48,129.76 is: 66,419.08
Step by Step Solution
- Step 1: Write the proportion equation
88,415.70 : 122,013.68 = 48,129.76 : x - Step 2: Convert to fraction form
88,415.70/122,013.68 = 48,129.76/x - Step 3: Cross multiply
88,415.70x = 122,013.68 × 48,129.76 - Step 4: Simplify right side
88,415.70x = 5,872,489,660.88 - Step 5: Solve for x
x = 5,872,489,660.88/88,415.70 - Step 6: Final answer
x = 66,419.08
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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.