Finding the Fourth Proportional to 87,206.76, 120,341.70 and 49,483.08
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Solution
The fourth proportional to 87,206.76, 120,341.70 and 49,483.08 is: 68,284.59
Step by Step Solution
- Step 1: Write the proportion equation
87,206.76 : 120,341.70 = 49,483.08 : x - Step 2: Convert to fraction form
87,206.76/120,341.70 = 49,483.08/x - Step 3: Cross multiply
87,206.76x = 120,341.70 × 49,483.08 - Step 4: Simplify right side
87,206.76x = 5,954,877,968.44 - Step 5: Solve for x
x = 5,954,877,968.44/87,206.76 - Step 6: Final answer
x = 68,284.59
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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.