Finding the Fourth Proportional to 85,159.19, 117,519.71 and 49,369.99
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Solution
The fourth proportional to 85,159.19, 117,519.71 and 49,369.99 is: 68,130.60
Step by Step Solution
- Step 1: Write the proportion equation
85,159.19 : 117,519.71 = 49,369.99 : x - Step 2: Convert to fraction form
85,159.19/117,519.71 = 49,369.99/x - Step 3: Cross multiply
85,159.19x = 117,519.71 × 49,369.99 - Step 4: Simplify right side
85,159.19x = 5,801,946,660.65 - Step 5: Solve for x
x = 5,801,946,660.65/85,159.19 - Step 6: Final answer
x = 68,130.60
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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.