Finding the Fourth Proportional to 77,316.06, 115,807.44 and 52,218.09
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Solution
The fourth proportional to 77,316.06, 115,807.44 and 52,218.09 is: 78,214.58
Step by Step Solution
- Step 1: Write the proportion equation
77,316.06 : 115,807.44 = 52,218.09 : x - Step 2: Convert to fraction form
77,316.06/115,807.44 = 52,218.09/x - Step 3: Cross multiply
77,316.06x = 115,807.44 × 52,218.09 - Step 4: Simplify right side
77,316.06x = 6,047,243,324.59 - Step 5: Solve for x
x = 6,047,243,324.59/77,316.06 - Step 6: Final answer
x = 78,214.58
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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.