Finding the Fourth Proportional to 73,124.46, 109,686.18 and 20,533.99
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Solution
The fourth proportional to 73,124.46, 109,686.18 and 20,533.99 is: 30,800.84
Step by Step Solution
- Step 1: Write the proportion equation
73,124.46 : 109,686.18 = 20,533.99 : x - Step 2: Convert to fraction form
73,124.46/109,686.18 = 20,533.99/x - Step 3: Cross multiply
73,124.46x = 109,686.18 × 20,533.99 - Step 4: Simplify right side
73,124.46x = 2,252,294,923.26 - Step 5: Solve for x
x = 2,252,294,923.26/73,124.46 - Step 6: Final answer
x = 30,800.84
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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.