Finding the Fourth Proportional to 76,692.93, 115,038.72 and 19,766.70
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Solution
The fourth proportional to 76,692.93, 115,038.72 and 19,766.70 is: 29,649.88
Step by Step Solution
- Step 1: Write the proportion equation
76,692.93 : 115,038.72 = 19,766.70 : x - Step 2: Convert to fraction form
76,692.93/115,038.72 = 19,766.70/x - Step 3: Cross multiply
76,692.93x = 115,038.72 × 19,766.70 - Step 4: Simplify right side
76,692.93x = 2,273,935,866.62 - Step 5: Solve for x
x = 2,273,935,866.62/76,692.93 - Step 6: Final answer
x = 29,649.88
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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.