Finding the Fourth Proportional to 74,818.24, 103,245.51 and 40,824.70
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Solution
The fourth proportional to 74,818.24, 103,245.51 and 40,824.70 is: 56,336.09
Step by Step Solution
- Step 1: Write the proportion equation
74,818.24 : 103,245.51 = 40,824.70 : x - Step 2: Convert to fraction form
74,818.24/103,245.51 = 40,824.70/x - Step 3: Cross multiply
74,818.24x = 103,245.51 × 40,824.70 - Step 4: Simplify right side
74,818.24x = 4,214,966,867.08 - Step 5: Solve for x
x = 4,214,966,867.08/74,818.24 - Step 6: Final answer
x = 56,336.09
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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.