Finding the Fourth Proportional to 74,081.99, 102,232.36 and 40,089.74
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Solution
The fourth proportional to 74,081.99, 102,232.36 and 40,089.74 is: 55,323.41
Step by Step Solution
- Step 1: Write the proportion equation
74,081.99 : 102,232.36 = 40,089.74 : x - Step 2: Convert to fraction form
74,081.99/102,232.36 = 40,089.74/x - Step 3: Cross multiply
74,081.99x = 102,232.36 × 40,089.74 - Step 4: Simplify right side
74,081.99x = 4,098,468,120.60 - Step 5: Solve for x
x = 4,098,468,120.60/74,081.99 - Step 6: Final answer
x = 55,323.41
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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.