Finding the Fourth Proportional to 89,025.40, 133,343.70 and 53,903.80
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Solution
The fourth proportional to 89,025.40, 133,343.70 and 53,903.80 is: 80,737.99
Step by Step Solution
- Step 1: Write the proportion equation
89,025.40 : 133,343.70 = 53,903.80 : x - Step 2: Convert to fraction form
89,025.40/133,343.70 = 53,903.80/x - Step 3: Cross multiply
89,025.40x = 133,343.70 × 53,903.80 - Step 4: Simplify right side
89,025.40x = 7,187,732,136.06 - Step 5: Solve for x
x = 7,187,732,136.06/89,025.40 - Step 6: Final answer
x = 80,737.99
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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.