Finding the Fourth Proportional to 84,309.60, 126,466.56 and 39,925.92
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Solution
The fourth proportional to 84,309.60, 126,466.56 and 39,925.92 is: 59,889.90
Step by Step Solution
- Step 1: Write the proportion equation
84,309.60 : 126,466.56 = 39,925.92 : x - Step 2: Convert to fraction form
84,309.60/126,466.56 = 39,925.92/x - Step 3: Cross multiply
84,309.60x = 126,466.56 × 39,925.92 - Step 4: Simplify right side
84,309.60x = 5,049,293,757.24 - Step 5: Solve for x
x = 5,049,293,757.24/84,309.60 - Step 6: Final answer
x = 59,889.90
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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.