Finding the Fourth Proportional to 75,780.75, 104,580.69 and 42,246.75
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Solution
The fourth proportional to 75,780.75, 104,580.69 and 42,246.75 is: 58,302.33
Step by Step Solution
- Step 1: Write the proportion equation
75,780.75 : 104,580.69 = 42,246.75 : x - Step 2: Convert to fraction form
75,780.75/104,580.69 = 42,246.75/x - Step 3: Cross multiply
75,780.75x = 104,580.69 × 42,246.75 - Step 4: Simplify right side
75,780.75x = 4,418,194,265.26 - Step 5: Solve for x
x = 4,418,194,265.26/75,780.75 - Step 6: Final answer
x = 58,302.33
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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.