Finding the Fourth Proportional to 99,085.26, 136,728.60 and 58,792.08
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Solution
The fourth proportional to 99,085.26, 136,728.60 and 58,792.08 is: 81,127.70
Step by Step Solution
- Step 1: Write the proportion equation
99,085.26 : 136,728.60 = 58,792.08 : x - Step 2: Convert to fraction form
99,085.26/136,728.60 = 58,792.08/x - Step 3: Cross multiply
99,085.26x = 136,728.60 × 58,792.08 - Step 4: Simplify right side
99,085.26x = 8,038,558,789.49 - Step 5: Solve for x
x = 8,038,558,789.49/99,085.26 - Step 6: Final answer
x = 81,127.70
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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.