Finding the Fourth Proportional to 76,953.30, 115,428.69 and 24,362.70
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Solution
The fourth proportional to 76,953.30, 115,428.69 and 24,362.70 is: 36,543.65
Step by Step Solution
- Step 1: Write the proportion equation
76,953.30 : 115,428.69 = 24,362.70 : x - Step 2: Convert to fraction form
76,953.30/115,428.69 = 24,362.70/x - Step 3: Cross multiply
76,953.30x = 115,428.69 × 24,362.70 - Step 4: Simplify right side
76,953.30x = 2,812,154,545.86 - Step 5: Solve for x
x = 2,812,154,545.86/76,953.30 - Step 6: Final answer
x = 36,543.65
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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.