Finding the Fourth Proportional to 83,620.20, 125,430.30 and 48,649.80
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Solution
The fourth proportional to 83,620.20, 125,430.30 and 48,649.80 is: 72,974.70
Step by Step Solution
- Step 1: Write the proportion equation
83,620.20 : 125,430.30 = 48,649.80 : x - Step 2: Convert to fraction form
83,620.20/125,430.30 = 48,649.80/x - Step 3: Cross multiply
83,620.20x = 125,430.30 × 48,649.80 - Step 4: Simplify right side
83,620.20x = 6,102,159,008.94 - Step 5: Solve for x
x = 6,102,159,008.94/83,620.20 - Step 6: Final answer
x = 72,974.70
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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.