Finding the Fourth Proportional to 74,709.99, 103,096.78 and 40,717.75
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Solution
The fourth proportional to 74,709.99, 103,096.78 and 40,717.75 is: 56,188.85
Step by Step Solution
- Step 1: Write the proportion equation
74,709.99 : 103,096.78 = 40,717.75 : x - Step 2: Convert to fraction form
74,709.99/103,096.78 = 40,717.75/x - Step 3: Cross multiply
74,709.99x = 103,096.78 × 40,717.75 - Step 4: Simplify right side
74,709.99x = 4,197,868,398.36 - Step 5: Solve for x
x = 4,197,868,398.36/74,709.99 - Step 6: Final answer
x = 56,188.85
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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.