Finding the Fourth Proportional to 85,842.14, 128,798.64 and 46,352.75
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Solution
The fourth proportional to 85,842.14, 128,798.64 and 46,352.75 is: 69,548.26
Step by Step Solution
- Step 1: Write the proportion equation
85,842.14 : 128,798.64 = 46,352.75 : x - Step 2: Convert to fraction form
85,842.14/128,798.64 = 46,352.75/x - Step 3: Cross multiply
85,842.14x = 128,798.64 × 46,352.75 - Step 4: Simplify right side
85,842.14x = 5,970,171,160.26 - Step 5: Solve for x
x = 5,970,171,160.26/85,842.14 - Step 6: Final answer
x = 69,548.26
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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.