Finding the Fourth Proportional to 105,464.93, 145,544.99 and 57,718.22
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Solution
The fourth proportional to 105,464.93, 145,544.99 and 57,718.22 is: 79,652.99
Step by Step Solution
- Step 1: Write the proportion equation
105,464.93 : 145,544.99 = 57,718.22 : x - Step 2: Convert to fraction form
105,464.93/145,544.99 = 57,718.22/x - Step 3: Cross multiply
105,464.93x = 145,544.99 × 57,718.22 - Step 4: Simplify right side
105,464.93x = 8,400,596,736.40 - Step 5: Solve for x
x = 8,400,596,736.40/105,464.93 - Step 6: Final answer
x = 79,652.99
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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.