Finding the Fourth Proportional to 74,086.44, 102,239.92 and 42,256.95
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Solution
The fourth proportional to 74,086.44, 102,239.92 and 42,256.95 is: 58,314.95
Step by Step Solution
- Step 1: Write the proportion equation
74,086.44 : 102,239.92 = 42,256.95 : x - Step 2: Convert to fraction form
74,086.44/102,239.92 = 42,256.95/x - Step 3: Cross multiply
74,086.44x = 102,239.92 × 42,256.95 - Step 4: Simplify right side
74,086.44x = 4,320,347,187.44 - Step 5: Solve for x
x = 4,320,347,187.44/74,086.44 - Step 6: Final answer
x = 58,314.95
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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.