Finding the Fourth Proportional to 81,297.92, 121,960.08 and 25,124.92
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Solution
The fourth proportional to 81,297.92, 121,960.08 and 25,124.92 is: 37,691.45
Step by Step Solution
- Step 1: Write the proportion equation
81,297.92 : 121,960.08 = 25,124.92 : x - Step 2: Convert to fraction form
81,297.92/121,960.08 = 25,124.92/x - Step 3: Cross multiply
81,297.92x = 121,960.08 × 25,124.92 - Step 4: Simplify right side
81,297.92x = 3,064,236,948.29 - Step 5: Solve for x
x = 3,064,236,948.29/81,297.92 - Step 6: Final answer
x = 37,691.45
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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.