Finding the Fourth Proportional to 87,225.93, 120,378.17 and 48,987.73
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Solution
The fourth proportional to 87,225.93, 120,378.17 and 48,987.73 is: 67,606.65
Step by Step Solution
- Step 1: Write the proportion equation
87,225.93 : 120,378.17 = 48,987.73 : x - Step 2: Convert to fraction form
87,225.93/120,378.17 = 48,987.73/x - Step 3: Cross multiply
87,225.93x = 120,378.17 × 48,987.73 - Step 4: Simplify right side
87,225.93x = 5,897,053,289.85 - Step 5: Solve for x
x = 5,897,053,289.85/87,225.93 - Step 6: Final answer
x = 67,606.65
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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.