Finding the Fourth Proportional to 74,557.75, 102,889.70 and 41,023.75
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Solution
The fourth proportional to 74,557.75, 102,889.70 and 41,023.75 is: 56,612.78
Step by Step Solution
- Step 1: Write the proportion equation
74,557.75 : 102,889.70 = 41,023.75 : x - Step 2: Convert to fraction form
74,557.75/102,889.70 = 41,023.75/x - Step 3: Cross multiply
74,557.75x = 102,889.70 × 41,023.75 - Step 4: Simplify right side
74,557.75x = 4,220,921,330.38 - Step 5: Solve for x
x = 4,220,921,330.38/74,557.75 - Step 6: Final answer
x = 56,612.78
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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.