Finding the Fourth Proportional to 87,099.30, 130,797.99 and 53,562.20
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Solution
The fourth proportional to 87,099.30, 130,797.99 and 53,562.20 is: 80,434.95
Step by Step Solution
- Step 1: Write the proportion equation
87,099.30 : 130,797.99 = 53,562.20 : x - Step 2: Convert to fraction form
87,099.30/130,797.99 = 53,562.20/x - Step 3: Cross multiply
87,099.30x = 130,797.99 × 53,562.20 - Step 4: Simplify right side
87,099.30x = 7,005,827,445.99 - Step 5: Solve for x
x = 7,005,827,445.99/87,099.30 - Step 6: Final answer
x = 80,434.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.