Finding the Fourth Proportional to 84,473.92, 126,690.92 and 28,316.08
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Solution
The fourth proportional to 84,473.92, 126,690.92 and 28,316.08 is: 42,467.43
Step by Step Solution
- Step 1: Write the proportion equation
84,473.92 : 126,690.92 = 28,316.08 : x - Step 2: Convert to fraction form
84,473.92/126,690.92 = 28,316.08/x - Step 3: Cross multiply
84,473.92x = 126,690.92 × 28,316.08 - Step 4: Simplify right side
84,473.92x = 3,587,390,225.99 - Step 5: Solve for x
x = 3,587,390,225.99/84,473.92 - Step 6: Final answer
x = 42,467.43
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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.