Finding the Fourth Proportional to 87,028.24, 120,089.95 and 51,216.12
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Solution
The fourth proportional to 87,028.24, 120,089.95 and 51,216.12 is: 70,672.94
Step by Step Solution
- Step 1: Write the proportion equation
87,028.24 : 120,089.95 = 51,216.12 : x - Step 2: Convert to fraction form
87,028.24/120,089.95 = 51,216.12/x - Step 3: Cross multiply
87,028.24x = 120,089.95 × 51,216.12 - Step 4: Simplify right side
87,028.24x = 6,150,541,289.99 - Step 5: Solve for x
x = 6,150,541,289.99/87,028.24 - Step 6: Final answer
x = 70,672.94
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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.