Finding the Fourth Proportional to 87,908.74, 131,774.91 and 43,567.70
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Solution
The fourth proportional to 87,908.74, 131,774.91 and 43,567.70 is: 65,307.84
Step by Step Solution
- Step 1: Write the proportion equation
87,908.74 : 131,774.91 = 43,567.70 : x - Step 2: Convert to fraction form
87,908.74/131,774.91 = 43,567.70/x - Step 3: Cross multiply
87,908.74x = 131,774.91 × 43,567.70 - Step 4: Simplify right side
87,908.74x = 5,741,129,746.41 - Step 5: Solve for x
x = 5,741,129,746.41/87,908.74 - Step 6: Final answer
x = 65,307.84
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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.