Finding the Fourth Proportional to 93,578.69, 140,311.85 and 39,479.00
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Solution
The fourth proportional to 93,578.69, 140,311.85 and 39,479.00 is: 59,194.79
Step by Step Solution
- Step 1: Write the proportion equation
93,578.69 : 140,311.85 = 39,479.00 : x - Step 2: Convert to fraction form
93,578.69/140,311.85 = 39,479.00/x - Step 3: Cross multiply
93,578.69x = 140,311.85 × 39,479.00 - Step 4: Simplify right side
93,578.69x = 5,539,370,627.20 - Step 5: Solve for x
x = 5,539,370,627.20/93,578.69 - Step 6: Final answer
x = 59,194.79
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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.