Finding the Fourth Proportional to 76,860.08, 106,065.96 and 43,326.08
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Solution
The fourth proportional to 76,860.08, 106,065.96 and 43,326.08 is: 59,789.45
Step by Step Solution
- Step 1: Write the proportion equation
76,860.08 : 106,065.96 = 43,326.08 : x - Step 2: Convert to fraction form
76,860.08/106,065.96 = 43,326.08/x - Step 3: Cross multiply
76,860.08x = 106,065.96 × 43,326.08 - Step 4: Simplify right side
76,860.08x = 4,595,422,268.24 - Step 5: Solve for x
x = 4,595,422,268.24/76,860.08 - Step 6: Final answer
x = 59,789.45
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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.