Finding the Fourth Proportional to 87,344.41, 120,497.93 and 57,077.19
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Solution
The fourth proportional to 87,344.41, 120,497.93 and 57,077.19 is: 78,742.11
Step by Step Solution
- Step 1: Write the proportion equation
87,344.41 : 120,497.93 = 57,077.19 : x - Step 2: Convert to fraction form
87,344.41/120,497.93 = 57,077.19/x - Step 3: Cross multiply
87,344.41x = 120,497.93 × 57,077.19 - Step 4: Simplify right side
87,344.41x = 6,877,682,959.83 - Step 5: Solve for x
x = 6,877,682,959.83/87,344.41 - Step 6: Final answer
x = 78,742.11
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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.