Finding the Fourth Proportional to 87,264.74, 120,425.20 and 49,538.99
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Solution
The fourth proportional to 87,264.74, 120,425.20 and 49,538.99 is: 68,363.73
Step by Step Solution
- Step 1: Write the proportion equation
87,264.74 : 120,425.20 = 49,538.99 : x - Step 2: Convert to fraction form
87,264.74/120,425.20 = 49,538.99/x - Step 3: Cross multiply
87,264.74x = 120,425.20 × 49,538.99 - Step 4: Simplify right side
87,264.74x = 5,965,742,955.76 - Step 5: Solve for x
x = 5,965,742,955.76/87,264.74 - Step 6: Final answer
x = 68,363.73
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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.