Finding the Fourth Proportional to 87,874.24, 121,266.48 and 48,130.24
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Solution
The fourth proportional to 87,874.24, 121,266.48 and 48,130.24 is: 66,419.75
Step by Step Solution
- Step 1: Write the proportion equation
87,874.24 : 121,266.48 = 48,130.24 : x - Step 2: Convert to fraction form
87,874.24/121,266.48 = 48,130.24/x - Step 3: Cross multiply
87,874.24x = 121,266.48 × 48,130.24 - Step 4: Simplify right side
87,874.24x = 5,836,584,786.36 - Step 5: Solve for x
x = 5,836,584,786.36/87,874.24 - Step 6: Final answer
x = 66,419.75
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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.