Finding the Fourth Proportional to 83,791.08, 115,634.66 and 46,068.20
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Solution
The fourth proportional to 83,791.08, 115,634.66 and 46,068.20 is: 63,575.75
Step by Step Solution
- Step 1: Write the proportion equation
83,791.08 : 115,634.66 = 46,068.20 : x - Step 2: Convert to fraction form
83,791.08/115,634.66 = 46,068.20/x - Step 3: Cross multiply
83,791.08x = 115,634.66 × 46,068.20 - Step 4: Simplify right side
83,791.08x = 5,327,080,643.81 - Step 5: Solve for x
x = 5,327,080,643.81/83,791.08 - Step 6: Final answer
x = 63,575.75
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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.