Finding the Fourth Proportional to 85,558.62, 127,711.26 and 75,458.46
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Solution
The fourth proportional to 85,558.62, 127,711.26 and 75,458.46 is: 112,634.99
Step by Step Solution
- Step 1: Write the proportion equation
85,558.62 : 127,711.26 = 75,458.46 : x - Step 2: Convert to fraction form
85,558.62/127,711.26 = 75,458.46/x - Step 3: Cross multiply
85,558.62x = 127,711.26 × 75,458.46 - Step 4: Simplify right side
85,558.62x = 9,636,893,988.41 - Step 5: Solve for x
x = 9,636,893,988.41/85,558.62 - Step 6: Final answer
x = 112,634.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.