Finding the Fourth Proportional to 84,487.25, 126,730.88 and 22,157.75
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Solution
The fourth proportional to 84,487.25, 126,730.88 and 22,157.75 is: 33,236.63
Step by Step Solution
- Step 1: Write the proportion equation
84,487.25 : 126,730.88 = 22,157.75 : x - Step 2: Convert to fraction form
84,487.25/126,730.88 = 22,157.75/x - Step 3: Cross multiply
84,487.25x = 126,730.88 × 22,157.75 - Step 4: Simplify right side
84,487.25x = 2,808,071,156.32 - Step 5: Solve for x
x = 2,808,071,156.32/84,487.25 - Step 6: Final answer
x = 33,236.63
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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.