Finding the Fourth Proportional to 74,461.77, 102,756.85 and 40,469.71
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Solution
The fourth proportional to 74,461.77, 102,756.85 and 40,469.71 is: 55,847.99
Step by Step Solution
- Step 1: Write the proportion equation
74,461.77 : 102,756.85 = 40,469.71 : x - Step 2: Convert to fraction form
74,461.77/102,756.85 = 40,469.71/x - Step 3: Cross multiply
74,461.77x = 102,756.85 × 40,469.71 - Step 4: Simplify right side
74,461.77x = 4,158,539,920.01 - Step 5: Solve for x
x = 4,158,539,920.01/74,461.77 - Step 6: Final answer
x = 55,847.99
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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.