Finding the Fourth Proportional to 91,094.26, 125,614.70 and 78,390.53
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Solution
The fourth proportional to 91,094.26, 125,614.70 and 78,390.53 is: 108,096.85
Step by Step Solution
- Step 1: Write the proportion equation
91,094.26 : 125,614.70 = 78,390.53 : x - Step 2: Convert to fraction form
91,094.26/125,614.70 = 78,390.53/x - Step 3: Cross multiply
91,094.26x = 125,614.70 × 78,390.53 - Step 4: Simplify right side
91,094.26x = 9,847,002,908.79 - Step 5: Solve for x
x = 9,847,002,908.79/91,094.26 - Step 6: Final answer
x = 108,096.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.