Finding the Fourth Proportional to 75,900.56, 113,698.56 and 69,700.01
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Solution
The fourth proportional to 75,900.56, 113,698.56 and 69,700.01 is: 104,410.17
Step by Step Solution
- Step 1: Write the proportion equation
75,900.56 : 113,698.56 = 69,700.01 : x - Step 2: Convert to fraction form
75,900.56/113,698.56 = 69,700.01/x - Step 3: Cross multiply
75,900.56x = 113,698.56 × 69,700.01 - Step 4: Simplify right side
75,900.56x = 7,924,790,136.24 - Step 5: Solve for x
x = 7,924,790,136.24/75,900.56 - Step 6: Final answer
x = 104,410.17
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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.