Finding the Fourth Proportional to 76,209.41, 114,295.71 and 31,812.08
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Solution
The fourth proportional to 76,209.41, 114,295.71 and 31,812.08 is: 47,710.44
Step by Step Solution
- Step 1: Write the proportion equation
76,209.41 : 114,295.71 = 31,812.08 : x - Step 2: Convert to fraction form
76,209.41/114,295.71 = 31,812.08/x - Step 3: Cross multiply
76,209.41x = 114,295.71 × 31,812.08 - Step 4: Simplify right side
76,209.41x = 3,635,984,270.18 - Step 5: Solve for x
x = 3,635,984,270.18/76,209.41 - Step 6: Final answer
x = 47,710.44
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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.