Finding the Fourth Proportional to 71,606.70, 107,440.42 and 38,318.13
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Solution
The fourth proportional to 71,606.70, 107,440.42 and 38,318.13 is: 57,493.45
Step by Step Solution
- Step 1: Write the proportion equation
71,606.70 : 107,440.42 = 38,318.13 : x - Step 2: Convert to fraction form
71,606.70/107,440.42 = 38,318.13/x - Step 3: Cross multiply
71,606.70x = 107,440.42 × 38,318.13 - Step 4: Simplify right side
71,606.70x = 4,116,915,980.81 - Step 5: Solve for x
x = 4,116,915,980.81/71,606.70 - Step 6: Final answer
x = 57,493.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.