Finding the Fourth Proportional to 78,700.31, 118,079.63 and 36,602.99
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Solution
The fourth proportional to 78,700.31, 118,079.63 and 36,602.99 is: 54,918.04
Step by Step Solution
- Step 1: Write the proportion equation
78,700.31 : 118,079.63 = 36,602.99 : x - Step 2: Convert to fraction form
78,700.31/118,079.63 = 36,602.99/x - Step 3: Cross multiply
78,700.31x = 118,079.63 × 36,602.99 - Step 4: Simplify right side
78,700.31x = 4,322,066,742.68 - Step 5: Solve for x
x = 4,322,066,742.68/78,700.31 - Step 6: Final answer
x = 54,918.04
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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.