Finding the Fourth Proportional to 87,904.44, 121,307.64 and 47,618.99
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Solution
The fourth proportional to 87,904.44, 121,307.64 and 47,618.99 is: 65,713.94
Step by Step Solution
- Step 1: Write the proportion equation
87,904.44 : 121,307.64 = 47,618.99 : x - Step 2: Convert to fraction form
87,904.44/121,307.64 = 47,618.99/x - Step 3: Cross multiply
87,904.44x = 121,307.64 × 47,618.99 - Step 4: Simplify right side
87,904.44x = 5,776,547,233.73 - Step 5: Solve for x
x = 5,776,547,233.73/87,904.44 - Step 6: Final answer
x = 65,713.94
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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.