Finding the Fourth Proportional to 121,580.19, 182,368.71 and 31,614.93
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Solution
The fourth proportional to 121,580.19, 182,368.71 and 31,614.93 is: 47,421.99
Step by Step Solution
- Step 1: Write the proportion equation
121,580.19 : 182,368.71 = 31,614.93 : x - Step 2: Convert to fraction form
121,580.19/182,368.71 = 31,614.93/x - Step 3: Cross multiply
121,580.19x = 182,368.71 × 31,614.93 - Step 4: Simplify right side
121,580.19x = 5,765,574,000.84 - Step 5: Solve for x
x = 5,765,574,000.84/121,580.19 - Step 6: Final answer
x = 47,421.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.