Finding the Fourth Proportional to 75,790.28, 104,590.82 and 42,257.48
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Solution
The fourth proportional to 75,790.28, 104,590.82 and 42,257.48 is: 58,315.45
Step by Step Solution
- Step 1: Write the proportion equation
75,790.28 : 104,590.82 = 42,257.48 : x - Step 2: Convert to fraction form
75,790.28/104,590.82 = 42,257.48/x - Step 3: Cross multiply
75,790.28x = 104,590.82 × 42,257.48 - Step 4: Simplify right side
75,790.28x = 4,419,744,484.33 - Step 5: Solve for x
x = 4,419,744,484.33/75,790.28 - Step 6: Final answer
x = 58,315.45
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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.