Finding the Fourth Proportional to 110,620.87, 165,931.40 and 47,399.99
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Solution
The fourth proportional to 110,620.87, 165,931.40 and 47,399.99 is: 71,100.02
Step by Step Solution
- Step 1: Write the proportion equation
110,620.87 : 165,931.40 = 47,399.99 : x - Step 2: Convert to fraction form
110,620.87/165,931.40 = 47,399.99/x - Step 3: Cross multiply
110,620.87x = 165,931.40 × 47,399.99 - Step 4: Simplify right side
110,620.87x = 7,865,145,989.53 - Step 5: Solve for x
x = 7,865,145,989.53/110,620.87 - Step 6: Final answer
x = 71,100.02
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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.