Finding the Fourth Proportional to 86,963.85, 120,007.98 and 48,724.99
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Solution
The fourth proportional to 86,963.85, 120,007.98 and 48,724.99 is: 67,239.29
Step by Step Solution
- Step 1: Write the proportion equation
86,963.85 : 120,007.98 = 48,724.99 : x - Step 2: Convert to fraction form
86,963.85/120,007.98 = 48,724.99/x - Step 3: Cross multiply
86,963.85x = 120,007.98 × 48,724.99 - Step 4: Simplify right side
86,963.85x = 5,847,387,625.42 - Step 5: Solve for x
x = 5,847,387,625.42/86,963.85 - Step 6: Final answer
x = 67,239.29
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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.