Finding the Fourth Proportional to 86,073.90, 118,782.99 and 48,348.78
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Solution
The fourth proportional to 86,073.90, 118,782.99 and 48,348.78 is: 66,721.88
Step by Step Solution
- Step 1: Write the proportion equation
86,073.90 : 118,782.99 = 48,348.78 : x - Step 2: Convert to fraction form
86,073.90/118,782.99 = 48,348.78/x - Step 3: Cross multiply
86,073.90x = 118,782.99 × 48,348.78 - Step 4: Simplify right side
86,073.90x = 5,743,012,651.25 - Step 5: Solve for x
x = 5,743,012,651.25/86,073.90 - Step 6: Final answer
x = 66,721.88
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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.