Finding the Fourth Proportional to 81,792.84, 122,690.34 and 29,205.48
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Solution
The fourth proportional to 81,792.84, 122,690.34 and 29,205.48 is: 43,808.61
Step by Step Solution
- Step 1: Write the proportion equation
81,792.84 : 122,690.34 = 29,205.48 : x - Step 2: Convert to fraction form
81,792.84/122,690.34 = 29,205.48/x - Step 3: Cross multiply
81,792.84x = 122,690.34 × 29,205.48 - Step 4: Simplify right side
81,792.84x = 3,583,230,271.06 - Step 5: Solve for x
x = 3,583,230,271.06/81,792.84 - Step 6: Final answer
x = 43,808.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.