Finding the Fourth Proportional to 87,580.92, 120,735.18 and 62,386.68
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Solution
The fourth proportional to 87,580.92, 120,735.18 and 62,386.68 is: 86,003.52
Step by Step Solution
- Step 1: Write the proportion equation
87,580.92 : 120,735.18 = 62,386.68 : x - Step 2: Convert to fraction form
87,580.92/120,735.18 = 62,386.68/x - Step 3: Cross multiply
87,580.92x = 120,735.18 × 62,386.68 - Step 4: Simplify right side
87,580.92x = 7,532,267,039.40 - Step 5: Solve for x
x = 7,532,267,039.40/87,580.92 - Step 6: Final answer
x = 86,003.52
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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.