Finding the Fourth Proportional to 87,579.83, 120,835.15 and 49,325.99
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Solution
The fourth proportional to 87,579.83, 120,835.15 and 49,325.99 is: 68,055.77
Step by Step Solution
- Step 1: Write the proportion equation
87,579.83 : 120,835.15 = 49,325.99 : x - Step 2: Convert to fraction form
87,579.83/120,835.15 = 49,325.99/x - Step 3: Cross multiply
87,579.83x = 120,835.15 × 49,325.99 - Step 4: Simplify right side
87,579.83x = 5,960,312,673.06 - Step 5: Solve for x
x = 5,960,312,673.06/87,579.83 - Step 6: Final answer
x = 68,055.77
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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.