Finding the Fourth Proportional to 87,882.97, 121,277.90 and 47,595.81
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Solution
The fourth proportional to 87,882.97, 121,277.90 and 47,595.81 is: 65,681.89
Step by Step Solution
- Step 1: Write the proportion equation
87,882.97 : 121,277.90 = 47,595.81 : x - Step 2: Convert to fraction form
87,882.97/121,277.90 = 47,595.81/x - Step 3: Cross multiply
87,882.97x = 121,277.90 × 47,595.81 - Step 4: Simplify right side
87,882.97x = 5,772,319,858.71 - Step 5: Solve for x
x = 5,772,319,858.71/87,882.97 - Step 6: Final answer
x = 65,681.89
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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.