Finding the Fourth Proportional to 86,879.50, 119,893.71 and 47,135.50
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Solution
The fourth proportional to 86,879.50, 119,893.71 and 47,135.50 is: 65,046.99
Step by Step Solution
- Step 1: Write the proportion equation
86,879.50 : 119,893.71 = 47,135.50 : x - Step 2: Convert to fraction form
86,879.50/119,893.71 = 47,135.50/x - Step 3: Cross multiply
86,879.50x = 119,893.71 × 47,135.50 - Step 4: Simplify right side
86,879.50x = 5,651,249,967.71 - Step 5: Solve for x
x = 5,651,249,967.71/86,879.50 - Step 6: Final answer
x = 65,046.99
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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.