Finding the Fourth Proportional to 86,453.17, 129,648.56 and 36,537.13
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Solution
The fourth proportional to 86,453.17, 129,648.56 and 36,537.13 is: 54,792.50
Step by Step Solution
- Step 1: Write the proportion equation
86,453.17 : 129,648.56 = 36,537.13 : x - Step 2: Convert to fraction form
86,453.17/129,648.56 = 36,537.13/x - Step 3: Cross multiply
86,453.17x = 129,648.56 × 36,537.13 - Step 4: Simplify right side
86,453.17x = 4,736,985,460.10 - Step 5: Solve for x
x = 4,736,985,460.10/86,453.17 - Step 6: Final answer
x = 54,792.50
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1.5x scale
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.