Finding the Fourth Proportional to 78,416.91, 108,191.50 and 44,420.00
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Solution
The fourth proportional to 78,416.91, 108,191.50 and 44,420.00 is: 61,286.09
Step by Step Solution
- Step 1: Write the proportion equation
78,416.91 : 108,191.50 = 44,420.00 : x - Step 2: Convert to fraction form
78,416.91/108,191.50 = 44,420.00/x - Step 3: Cross multiply
78,416.91x = 108,191.50 × 44,420.00 - Step 4: Simplify right side
78,416.91x = 4,805,865,777.99 - Step 5: Solve for x
x = 4,805,865,777.99/78,416.91 - Step 6: Final answer
x = 61,286.09
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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.