Finding the Fourth Proportional to 87,873.87, 121,266.06 and 47,587.70
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Solution
The fourth proportional to 87,873.87, 121,266.06 and 47,587.70 is: 65,671.08
Step by Step Solution
- Step 1: Write the proportion equation
87,873.87 : 121,266.06 = 47,587.70 : x - Step 2: Convert to fraction form
87,873.87/121,266.06 = 47,587.70/x - Step 3: Cross multiply
87,873.87x = 121,266.06 × 47,587.70 - Step 4: Simplify right side
87,873.87x = 5,770,772,277.13 - Step 5: Solve for x
x = 5,770,772,277.13/87,873.87 - Step 6: Final answer
x = 65,671.08
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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.