Finding the Fourth Proportional to 87,260.19, 120,415.84 and 53,325.46
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Solution
The fourth proportional to 87,260.19, 120,415.84 and 53,325.46 is: 73,587.17
Step by Step Solution
- Step 1: Write the proportion equation
87,260.19 : 120,415.84 = 53,325.46 : x - Step 2: Convert to fraction form
87,260.19/120,415.84 = 53,325.46/x - Step 3: Cross multiply
87,260.19x = 120,415.84 × 53,325.46 - Step 4: Simplify right side
87,260.19x = 6,421,230,059.29 - Step 5: Solve for x
x = 6,421,230,059.29/87,260.19 - Step 6: Final answer
x = 73,587.17
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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.