Finding the Fourth Proportional to 81,926.98, 122,776.22 and 61,920.05
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Solution
The fourth proportional to 81,926.98, 122,776.22 and 61,920.05 is: 92,793.72
Step by Step Solution
- Step 1: Write the proportion equation
81,926.98 : 122,776.22 = 61,920.05 : x - Step 2: Convert to fraction form
81,926.98/122,776.22 = 61,920.05/x - Step 3: Cross multiply
81,926.98x = 122,776.22 × 61,920.05 - Step 4: Simplify right side
81,926.98x = 7,602,309,222.13 - Step 5: Solve for x
x = 7,602,309,222.13/81,926.98 - Step 6: Final answer
x = 92,793.72
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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.