Finding the Fourth Proportional to 75,299.68, 103,921.74 and 48,100.80
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Solution
The fourth proportional to 75,299.68, 103,921.74 and 48,100.80 is: 66,384.33
Step by Step Solution
- Step 1: Write the proportion equation
75,299.68 : 103,921.74 = 48,100.80 : x - Step 2: Convert to fraction form
75,299.68/103,921.74 = 48,100.80/x - Step 3: Cross multiply
75,299.68x = 103,921.74 × 48,100.80 - Step 4: Simplify right side
75,299.68x = 4,998,718,831.39 - Step 5: Solve for x
x = 4,998,718,831.39/75,299.68 - Step 6: Final answer
x = 66,384.33
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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.