Finding the Fourth Proportional to 71,509.95, 107,265.57 and 18,201.99
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Solution
The fourth proportional to 71,509.95, 107,265.57 and 18,201.99 is: 27,303.15
Step by Step Solution
- Step 1: Write the proportion equation
71,509.95 : 107,265.57 = 18,201.99 : x - Step 2: Convert to fraction form
71,509.95/107,265.57 = 18,201.99/x - Step 3: Cross multiply
71,509.95x = 107,265.57 × 18,201.99 - Step 4: Simplify right side
71,509.95x = 1,952,446,832.48 - Step 5: Solve for x
x = 1,952,446,832.48/71,509.95 - Step 6: Final answer
x = 27,303.15
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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.