Finding the Fourth Proportional to 86,625.71, 119,542.21 and 48,385.79
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Solution
The fourth proportional to 86,625.71, 119,542.21 and 48,385.79 is: 66,771.68
Step by Step Solution
- Step 1: Write the proportion equation
86,625.71 : 119,542.21 = 48,385.79 : x - Step 2: Convert to fraction form
86,625.71/119,542.21 = 48,385.79/x - Step 3: Cross multiply
86,625.71x = 119,542.21 × 48,385.79 - Step 4: Simplify right side
86,625.71x = 5,784,144,671.23 - Step 5: Solve for x
x = 5,784,144,671.23/86,625.71 - Step 6: Final answer
x = 66,771.68
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Double scale
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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.