Finding the Fourth Proportional to 94,122.21, 129,890.75 and 51,680.91
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Solution
The fourth proportional to 94,122.21, 129,890.75 and 51,680.91 is: 71,320.81
Step by Step Solution
- Step 1: Write the proportion equation
94,122.21 : 129,890.75 = 51,680.91 : x - Step 2: Convert to fraction form
94,122.21/129,890.75 = 51,680.91/x - Step 3: Cross multiply
94,122.21x = 129,890.75 × 51,680.91 - Step 4: Simplify right side
94,122.21x = 6,712,871,902.18 - Step 5: Solve for x
x = 6,712,871,902.18/94,122.21 - Step 6: Final answer
x = 71,320.81
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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.