Finding the Fourth Proportional to 88,902.10, 122,473.65 and 61,995.70
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Solution
The fourth proportional to 88,902.10, 122,473.65 and 61,995.70 is: 85,406.75
Step by Step Solution
- Step 1: Write the proportion equation
88,902.10 : 122,473.65 = 61,995.70 : x - Step 2: Convert to fraction form
88,902.10/122,473.65 = 61,995.70/x - Step 3: Cross multiply
88,902.10x = 122,473.65 × 61,995.70 - Step 4: Simplify right side
88,902.10x = 7,592,839,663.31 - Step 5: Solve for x
x = 7,592,839,663.31/88,902.10 - Step 6: Final answer
x = 85,406.75
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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.