Finding the Fourth Proportional to 79,416.16, 119,125.12 and 20,252.32
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Solution
The fourth proportional to 79,416.16, 119,125.12 and 20,252.32 is: 30,378.70
Step by Step Solution
- Step 1: Write the proportion equation
79,416.16 : 119,125.12 = 20,252.32 : x - Step 2: Convert to fraction form
79,416.16/119,125.12 = 20,252.32/x - Step 3: Cross multiply
79,416.16x = 119,125.12 × 20,252.32 - Step 4: Simplify right side
79,416.16x = 2,412,560,050.28 - Step 5: Solve for x
x = 2,412,560,050.28/79,416.16 - Step 6: Final answer
x = 30,378.70
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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.