Finding the Fourth Proportional to 86,051.36, 118,747.49 and 47,813.28
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Solution
The fourth proportional to 86,051.36, 118,747.49 and 47,813.28 is: 65,980.45
Step by Step Solution
- Step 1: Write the proportion equation
86,051.36 : 118,747.49 = 47,813.28 : x - Step 2: Convert to fraction form
86,051.36/118,747.49 = 47,813.28/x - Step 3: Cross multiply
86,051.36x = 118,747.49 × 47,813.28 - Step 4: Simplify right side
86,051.36x = 5,677,706,749.60 - Step 5: Solve for x
x = 5,677,706,749.60/86,051.36 - Step 6: Final answer
x = 65,980.45
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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.