Finding the Fourth Proportional to 88,419.80, 122,020.12 and 48,133.76
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Solution
The fourth proportional to 88,419.80, 122,020.12 and 48,133.76 is: 66,425.02
Step by Step Solution
- Step 1: Write the proportion equation
88,419.80 : 122,020.12 = 48,133.76 : x - Step 2: Convert to fraction form
88,419.80/122,020.12 = 48,133.76/x - Step 3: Cross multiply
88,419.80x = 122,020.12 × 48,133.76 - Step 4: Simplify right side
88,419.80x = 5,873,287,171.25 - Step 5: Solve for x
x = 5,873,287,171.25/88,419.80 - Step 6: Final answer
x = 66,425.02
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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.