Finding the Fourth Proportional to 75,225.68, 103,807.44 and 43,392.68
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Solution
The fourth proportional to 75,225.68, 103,807.44 and 43,392.68 is: 59,879.59
Step by Step Solution
- Step 1: Write the proportion equation
75,225.68 : 103,807.44 = 43,392.68 : x - Step 2: Convert to fraction form
75,225.68/103,807.44 = 43,392.68/x - Step 3: Cross multiply
75,225.68x = 103,807.44 × 43,392.68 - Step 4: Simplify right side
75,225.68x = 4,504,483,025.54 - Step 5: Solve for x
x = 4,504,483,025.54/75,225.68 - Step 6: Final answer
x = 59,879.59
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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.