Finding the Fourth Proportional to 75,930.84, 104,785.92 and 45,716.76
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Solution
The fourth proportional to 75,930.84, 104,785.92 and 45,716.76 is: 63,089.95
Step by Step Solution
- Step 1: Write the proportion equation
75,930.84 : 104,785.92 = 45,716.76 : x - Step 2: Convert to fraction form
75,930.84/104,785.92 = 45,716.76/x - Step 3: Cross multiply
75,930.84x = 104,785.92 × 45,716.76 - Step 4: Simplify right side
75,930.84x = 4,790,472,756.02 - Step 5: Solve for x
x = 4,790,472,756.02/75,930.84 - Step 6: Final answer
x = 63,089.95
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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.