Finding the Fourth Proportional to 80,869.19, 120,735.14 and 61,793.99
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Solution
The fourth proportional to 80,869.19, 120,735.14 and 61,793.99 is: 92,256.47
Step by Step Solution
- Step 1: Write the proportion equation
80,869.19 : 120,735.14 = 61,793.99 : x - Step 2: Convert to fraction form
80,869.19/120,735.14 = 61,793.99/x - Step 3: Cross multiply
80,869.19x = 120,735.14 × 61,793.99 - Step 4: Simplify right side
80,869.19x = 7,460,706,033.81 - Step 5: Solve for x
x = 7,460,706,033.81/80,869.19 - Step 6: Final answer
x = 92,256.47
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.