Finding the Fourth Proportional to 74,453.44, 102,746.08 and 40,921.60
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Solution
The fourth proportional to 74,453.44, 102,746.08 and 40,921.60 is: 56,471.99
Step by Step Solution
- Step 1: Write the proportion equation
74,453.44 : 102,746.08 = 40,921.60 : x - Step 2: Convert to fraction form
74,453.44/102,746.08 = 40,921.60/x - Step 3: Cross multiply
74,453.44x = 102,746.08 × 40,921.60 - Step 4: Simplify right side
74,453.44x = 4,204,533,987.33 - Step 5: Solve for x
x = 4,204,533,987.33/74,453.44 - Step 6: Final answer
x = 56,471.99
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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.