Finding the Fourth Proportional to 91,369.90, 137,038.08 and 41,437.99
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Solution
The fourth proportional to 91,369.90, 137,038.08 and 41,437.99 is: 62,149.38
Step by Step Solution
- Step 1: Write the proportion equation
91,369.90 : 137,038.08 = 41,437.99 : x - Step 2: Convert to fraction form
91,369.90/137,038.08 = 41,437.99/x - Step 3: Cross multiply
91,369.90x = 137,038.08 × 41,437.99 - Step 4: Simplify right side
91,369.90x = 5,678,582,588.66 - Step 5: Solve for x
x = 5,678,582,588.66/91,369.90 - Step 6: Final answer
x = 62,149.38
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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.