Finding the Fourth Proportional to 103,532.58, 142,871.22 and 57,591.99
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Solution
The fourth proportional to 103,532.58, 142,871.22 and 57,591.99 is: 79,474.87
Step by Step Solution
- Step 1: Write the proportion equation
103,532.58 : 142,871.22 = 57,591.99 : x - Step 2: Convert to fraction form
103,532.58/142,871.22 = 57,591.99/x - Step 3: Cross multiply
103,532.58x = 142,871.22 × 57,591.99 - Step 4: Simplify right side
103,532.58x = 8,228,237,873.53 - Step 5: Solve for x
x = 8,228,237,873.53/103,532.58 - Step 6: Final answer
x = 79,474.87
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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.