Finding the Fourth Proportional to 76,187.84, 114,355.48 and 36,772.70
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Solution
The fourth proportional to 76,187.84, 114,355.48 and 36,772.70 is: 55,194.63
Step by Step Solution
- Step 1: Write the proportion equation
76,187.84 : 114,355.48 = 36,772.70 : x - Step 2: Convert to fraction form
76,187.84/114,355.48 = 36,772.70/x - Step 3: Cross multiply
76,187.84x = 114,355.48 × 36,772.70 - Step 4: Simplify right side
76,187.84x = 4,205,159,759.40 - Step 5: Solve for x
x = 4,205,159,759.40/76,187.84 - Step 6: Final answer
x = 55,194.63
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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.