Finding the Fourth Proportional to 86,695.75, 119,649.87 and 48,972.43
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Solution
The fourth proportional to 86,695.75, 119,649.87 and 48,972.43 is: 67,587.45
Step by Step Solution
- Step 1: Write the proportion equation
86,695.75 : 119,649.87 = 48,972.43 : x - Step 2: Convert to fraction form
86,695.75/119,649.87 = 48,972.43/x - Step 3: Cross multiply
86,695.75x = 119,649.87 × 48,972.43 - Step 4: Simplify right side
86,695.75x = 5,859,544,883.08 - Step 5: Solve for x
x = 5,859,544,883.08/86,695.75 - Step 6: Final answer
x = 67,587.45
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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.