Finding the Fourth Proportional to 86,154.13, 118,897.32 and 50,365.09
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Solution
The fourth proportional to 86,154.13, 118,897.32 and 50,365.09 is: 69,506.52
Step by Step Solution
- Step 1: Write the proportion equation
86,154.13 : 118,897.32 = 50,365.09 : x - Step 2: Convert to fraction form
86,154.13/118,897.32 = 50,365.09/x - Step 3: Cross multiply
86,154.13x = 118,897.32 × 50,365.09 - Step 4: Simplify right side
86,154.13x = 5,988,274,276.75 - Step 5: Solve for x
x = 5,988,274,276.75/86,154.13 - Step 6: Final answer
x = 69,506.52
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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.