Finding the Fourth Proportional to 87,882.91, 121,277.81 and 47,595.75
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Solution
The fourth proportional to 87,882.91, 121,277.81 and 47,595.75 is: 65,681.81
Step by Step Solution
- Step 1: Write the proportion equation
87,882.91 : 121,277.81 = 47,595.75 : x - Step 2: Convert to fraction form
87,882.91/121,277.81 = 47,595.75/x - Step 3: Cross multiply
87,882.91x = 121,277.81 × 47,595.75 - Step 4: Simplify right side
87,882.91x = 5,772,308,325.31 - Step 5: Solve for x
x = 5,772,308,325.31/87,882.91 - Step 6: Final answer
x = 65,681.81
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1.5x scale
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.