Finding the Fourth Proportional to 87,077.18, 120,055.26 and 56,396.07
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Solution
The fourth proportional to 87,077.18, 120,055.26 and 56,396.07 is: 77,754.53
Step by Step Solution
- Step 1: Write the proportion equation
87,077.18 : 120,055.26 = 56,396.07 : x - Step 2: Convert to fraction form
87,077.18/120,055.26 = 56,396.07/x - Step 3: Cross multiply
87,077.18x = 120,055.26 × 56,396.07 - Step 4: Simplify right side
87,077.18x = 6,770,644,846.83 - Step 5: Solve for x
x = 6,770,644,846.83/87,077.18 - Step 6: Final answer
x = 77,754.53
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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.