Finding the Fourth Proportional to 75,363.20, 104,003.28 and 48,557.60
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Solution
The fourth proportional to 75,363.20, 104,003.28 and 48,557.60 is: 67,010.82
Step by Step Solution
- Step 1: Write the proportion equation
75,363.20 : 104,003.28 = 48,557.60 : x - Step 2: Convert to fraction form
75,363.20/104,003.28 = 48,557.60/x - Step 3: Cross multiply
75,363.20x = 104,003.28 × 48,557.60 - Step 4: Simplify right side
75,363.20x = 5,050,149,668.93 - Step 5: Solve for x
x = 5,050,149,668.93/75,363.20 - Step 6: Final answer
x = 67,010.82
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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.