Finding the Fourth Proportional to 79,869.12, 119,803.68 and 24,457.92
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Solution
The fourth proportional to 79,869.12, 119,803.68 and 24,457.92 is: 36,686.88
Step by Step Solution
- Step 1: Write the proportion equation
79,869.12 : 119,803.68 = 24,457.92 : x - Step 2: Convert to fraction form
79,869.12/119,803.68 = 24,457.92/x - Step 3: Cross multiply
79,869.12x = 119,803.68 × 24,457.92 - Step 4: Simplify right side
79,869.12x = 2,930,148,821.15 - Step 5: Solve for x
x = 2,930,148,821.15/79,869.12 - Step 6: Final answer
x = 36,686.88
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1.5x scale
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.