Finding the Fourth Proportional to 83,716.39, 115,548.29 and 47,926.95
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Solution
The fourth proportional to 83,716.39, 115,548.29 and 47,926.95 is: 66,150.45
Step by Step Solution
- Step 1: Write the proportion equation
83,716.39 : 115,548.29 = 47,926.95 : x - Step 2: Convert to fraction form
83,716.39/115,548.29 = 47,926.95/x - Step 3: Cross multiply
83,716.39x = 115,548.29 × 47,926.95 - Step 4: Simplify right side
83,716.39x = 5,537,877,117.42 - Step 5: Solve for x
x = 5,537,877,117.42/83,716.39 - Step 6: Final answer
x = 66,150.45
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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.