Finding the Fourth Proportional to 97,721.20, 146,581.80 and 58,322.80
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Solution
The fourth proportional to 97,721.20, 146,581.80 and 58,322.80 is: 87,484.20
Step by Step Solution
- Step 1: Write the proportion equation
97,721.20 : 146,581.80 = 58,322.80 : x - Step 2: Convert to fraction form
97,721.20/146,581.80 = 58,322.80/x - Step 3: Cross multiply
97,721.20x = 146,581.80 × 58,322.80 - Step 4: Simplify right side
97,721.20x = 8,549,061,005.04 - Step 5: Solve for x
x = 8,549,061,005.04/97,721.20 - Step 6: Final answer
x = 87,484.20
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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.