Finding the Fourth Proportional to 83,349.14, 115,020.62 and 47,539.74
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Solution
The fourth proportional to 83,349.14, 115,020.62 and 47,539.74 is: 65,604.17
Step by Step Solution
- Step 1: Write the proportion equation
83,349.14 : 115,020.62 = 47,539.74 : x - Step 2: Convert to fraction form
83,349.14/115,020.62 = 47,539.74/x - Step 3: Cross multiply
83,349.14x = 115,020.62 × 47,539.74 - Step 4: Simplify right side
83,349.14x = 5,468,051,008.75 - Step 5: Solve for x
x = 5,468,051,008.75/83,349.14 - Step 6: Final answer
x = 65,604.17
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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.