Finding the Fourth Proportional to 94,961.19, 142,389.21 and 38,840.70
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Solution
The fourth proportional to 94,961.19, 142,389.21 and 38,840.70 is: 58,239.55
Step by Step Solution
- Step 1: Write the proportion equation
94,961.19 : 142,389.21 = 38,840.70 : x - Step 2: Convert to fraction form
94,961.19/142,389.21 = 38,840.70/x - Step 3: Cross multiply
94,961.19x = 142,389.21 × 38,840.70 - Step 4: Simplify right side
94,961.19x = 5,530,496,588.85 - Step 5: Solve for x
x = 5,530,496,588.85/94,961.19 - Step 6: Final answer
x = 58,239.55
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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.