Finding the Fourth Proportional to 75,439.70, 113,159.55 and 49,195.70
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Solution
The fourth proportional to 75,439.70, 113,159.55 and 49,195.70 is: 73,793.55
Step by Step Solution
- Step 1: Write the proportion equation
75,439.70 : 113,159.55 = 49,195.70 : x - Step 2: Convert to fraction form
75,439.70/113,159.55 = 49,195.70/x - Step 3: Cross multiply
75,439.70x = 113,159.55 × 49,195.70 - Step 4: Simplify right side
75,439.70x = 5,566,963,273.94 - Step 5: Solve for x
x = 5,566,963,273.94/75,439.70 - Step 6: Final answer
x = 73,793.55
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1.5x scale
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.