Finding the Fourth Proportional to 75,201.68, 112,816.74 and 30,226.53
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Solution
The fourth proportional to 75,201.68, 112,816.74 and 30,226.53 is: 45,345.52
Step by Step Solution
- Step 1: Write the proportion equation
75,201.68 : 112,816.74 = 30,226.53 : x - Step 2: Convert to fraction form
75,201.68/112,816.74 = 30,226.53/x - Step 3: Cross multiply
75,201.68x = 112,816.74 × 30,226.53 - Step 4: Simplify right side
75,201.68x = 3,410,058,963.75 - Step 5: Solve for x
x = 3,410,058,963.75/75,201.68 - Step 6: Final answer
x = 45,345.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.