Finding the Fourth Proportional to 89,270.33, 133,916.49 and 39,362.99
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Solution
The fourth proportional to 89,270.33, 133,916.49 and 39,362.99 is: 59,049.33
Step by Step Solution
- Step 1: Write the proportion equation
89,270.33 : 133,916.49 = 39,362.99 : x - Step 2: Convert to fraction form
89,270.33/133,916.49 = 39,362.99/x - Step 3: Cross multiply
89,270.33x = 133,916.49 × 39,362.99 - Step 4: Simplify right side
89,270.33x = 5,271,352,787.12 - Step 5: Solve for x
x = 5,271,352,787.12/89,270.33 - Step 6: Final answer
x = 59,049.33
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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.