Finding the Fourth Proportional to 78,536.52, 117,842.58 and 39,097.08
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Solution
The fourth proportional to 78,536.52, 117,842.58 and 39,097.08 is: 58,664.44
Step by Step Solution
- Step 1: Write the proportion equation
78,536.52 : 117,842.58 = 39,097.08 : x - Step 2: Convert to fraction form
78,536.52/117,842.58 = 39,097.08/x - Step 3: Cross multiply
78,536.52x = 117,842.58 × 39,097.08 - Step 4: Simplify right side
78,536.52x = 4,607,300,777.67 - Step 5: Solve for x
x = 4,607,300,777.67/78,536.52 - Step 6: Final answer
x = 58,664.44
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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.