Finding the Fourth Proportional to 75,808.13, 104,648.84 and 48,963.72
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Solution
The fourth proportional to 75,808.13, 104,648.84 and 48,963.72 is: 67,591.66
Step by Step Solution
- Step 1: Write the proportion equation
75,808.13 : 104,648.84 = 48,963.72 : x - Step 2: Convert to fraction form
75,808.13/104,648.84 = 48,963.72/x - Step 3: Cross multiply
75,808.13x = 104,648.84 × 48,963.72 - Step 4: Simplify right side
75,808.13x = 5,123,996,831.31 - Step 5: Solve for x
x = 5,123,996,831.31/75,808.13 - Step 6: Final answer
x = 67,591.66
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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.