Finding the Fourth Proportional to 104,792.30, 144,613.37 and 57,045.99
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Solution
The fourth proportional to 104,792.30, 144,613.37 and 57,045.99 is: 78,723.47
Step by Step Solution
- Step 1: Write the proportion equation
104,792.30 : 144,613.37 = 57,045.99 : x - Step 2: Convert to fraction form
104,792.30/144,613.37 = 57,045.99/x - Step 3: Cross multiply
104,792.30x = 144,613.37 × 57,045.99 - Step 4: Simplify right side
104,792.30x = 8,249,612,573.66 - Step 5: Solve for x
x = 8,249,612,573.66/104,792.30 - Step 6: Final answer
x = 78,723.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.