Finding the Fourth Proportional to 87,027.24, 120,088.58 and 51,215.12
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Solution
The fourth proportional to 87,027.24, 120,088.58 and 51,215.12 is: 70,671.55
Step by Step Solution
- Step 1: Write the proportion equation
87,027.24 : 120,088.58 = 51,215.12 : x - Step 2: Convert to fraction form
87,027.24/120,088.58 = 51,215.12/x - Step 3: Cross multiply
87,027.24x = 120,088.58 × 51,215.12 - Step 4: Simplify right side
87,027.24x = 6,150,350,629.14 - Step 5: Solve for x
x = 6,150,350,629.14/87,027.24 - Step 6: Final answer
x = 70,671.55
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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.