Finding the Fourth Proportional to 91,098.39, 125,715.95 and 50,814.75
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Solution
The fourth proportional to 91,098.39, 125,715.95 and 50,814.75 is: 70,124.45
Step by Step Solution
- Step 1: Write the proportion equation
91,098.39 : 125,715.95 = 50,814.75 : x - Step 2: Convert to fraction form
91,098.39/125,715.95 = 50,814.75/x - Step 3: Cross multiply
91,098.39x = 125,715.95 × 50,814.75 - Step 4: Simplify right side
91,098.39x = 6,388,224,316.19 - Step 5: Solve for x
x = 6,388,224,316.19/91,098.39 - Step 6: Final answer
x = 70,124.45
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1.5x scale
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.