Finding the Fourth Proportional to 90,764.74, 125,258.42 and 49,930.66
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Solution
The fourth proportional to 90,764.74, 125,258.42 and 49,930.66 is: 68,906.01
Step by Step Solution
- Step 1: Write the proportion equation
90,764.74 : 125,258.42 = 49,930.66 : x - Step 2: Convert to fraction form
90,764.74/125,258.42 = 49,930.66/x - Step 3: Cross multiply
90,764.74x = 125,258.42 × 49,930.66 - Step 4: Simplify right side
90,764.74x = 6,254,235,581.16 - Step 5: Solve for x
x = 6,254,235,581.16/90,764.74 - Step 6: Final answer
x = 68,906.01
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.