Finding the Fourth Proportional to 81,272.41, 112,110.78 and 47,277.07
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Solution
The fourth proportional to 81,272.41, 112,110.78 and 47,277.07 is: 65,216.09
Step by Step Solution
- Step 1: Write the proportion equation
81,272.41 : 112,110.78 = 47,277.07 : x - Step 2: Convert to fraction form
81,272.41/112,110.78 = 47,277.07/x - Step 3: Cross multiply
81,272.41x = 112,110.78 × 47,277.07 - Step 4: Simplify right side
81,272.41x = 5,300,268,633.26 - Step 5: Solve for x
x = 5,300,268,633.26/81,272.41 - Step 6: Final answer
x = 65,216.09
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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.