Finding the Fourth Proportional to 84,291.27, 126,455.39 and 31,700.75
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Solution
The fourth proportional to 84,291.27, 126,455.39 and 31,700.75 is: 47,558.07
Step by Step Solution
- Step 1: Write the proportion equation
84,291.27 : 126,455.39 = 31,700.75 : x - Step 2: Convert to fraction form
84,291.27/126,455.39 = 31,700.75/x - Step 3: Cross multiply
84,291.27x = 126,455.39 × 31,700.75 - Step 4: Simplify right side
84,291.27x = 4,008,729,913.76 - Step 5: Solve for x
x = 4,008,729,913.76/84,291.27 - Step 6: Final answer
x = 47,558.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.