Finding the Fourth Proportional to 86,642.87, 119,555.29 and 48,397.55
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Solution
The fourth proportional to 86,642.87, 119,555.29 and 48,397.55 is: 66,781.99
Step by Step Solution
- Step 1: Write the proportion equation
86,642.87 : 119,555.29 = 48,397.55 : x - Step 2: Convert to fraction form
86,642.87/119,555.29 = 48,397.55/x - Step 3: Cross multiply
86,642.87x = 119,555.29 × 48,397.55 - Step 4: Simplify right side
86,642.87x = 5,786,183,260.76 - Step 5: Solve for x
x = 5,786,183,260.76/86,642.87 - Step 6: Final answer
x = 66,781.99
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1.5x scale
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.