Finding the Fourth Proportional to 90,876.99, 136,343.30 and 46,535.13
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Solution
The fourth proportional to 90,876.99, 136,343.30 and 46,535.13 is: 69,816.94
Step by Step Solution
- Step 1: Write the proportion equation
90,876.99 : 136,343.30 = 46,535.13 : x - Step 2: Convert to fraction form
90,876.99/136,343.30 = 46,535.13/x - Step 3: Cross multiply
90,876.99x = 136,343.30 × 46,535.13 - Step 4: Simplify right side
90,876.99x = 6,344,753,190.13 - Step 5: Solve for x
x = 6,344,753,190.13/90,876.99 - Step 6: Final answer
x = 69,816.94
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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.