Finding the Fourth Proportional to 74,000.68, 102,120.42 and 40,466.92
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Solution
The fourth proportional to 74,000.68, 102,120.42 and 40,466.92 is: 55,844.07
Step by Step Solution
- Step 1: Write the proportion equation
74,000.68 : 102,120.42 = 40,466.92 : x - Step 2: Convert to fraction form
74,000.68/102,120.42 = 40,466.92/x - Step 3: Cross multiply
74,000.68x = 102,120.42 × 40,466.92 - Step 4: Simplify right side
74,000.68x = 4,132,498,866.51 - Step 5: Solve for x
x = 4,132,498,866.51/74,000.68 - Step 6: Final answer
x = 55,844.07
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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.