Finding the Fourth Proportional to 74,447.75, 102,737.90 and 40,913.75
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Solution
The fourth proportional to 74,447.75, 102,737.90 and 40,913.75 is: 56,460.98
Step by Step Solution
- Step 1: Write the proportion equation
74,447.75 : 102,737.90 = 40,913.75 : x - Step 2: Convert to fraction form
74,447.75/102,737.90 = 40,913.75/x - Step 3: Cross multiply
74,447.75x = 102,737.90 × 40,913.75 - Step 4: Simplify right side
74,447.75x = 4,203,392,756.13 - Step 5: Solve for x
x = 4,203,392,756.13/74,447.75 - Step 6: Final answer
x = 56,460.98
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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.