Finding the Fourth Proportional to 80,868.19, 120,733.65 and 61,792.99
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Solution
The fourth proportional to 80,868.19, 120,733.65 and 61,792.99 is: 92,254.98
Step by Step Solution
- Step 1: Write the proportion equation
80,868.19 : 120,733.65 = 61,792.99 : x - Step 2: Convert to fraction form
80,868.19/120,733.65 = 61,792.99/x - Step 3: Cross multiply
80,868.19x = 120,733.65 × 61,792.99 - Step 4: Simplify right side
80,868.19x = 7,460,493,227.11 - Step 5: Solve for x
x = 7,460,493,227.11/80,868.19 - Step 6: Final answer
x = 92,254.98
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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.