Finding the Fourth Proportional to 87,994.24, 121,314.58 and 69,904.98
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Solution
The fourth proportional to 87,994.24, 121,314.58 and 69,904.98 is: 96,375.55
Step by Step Solution
- Step 1: Write the proportion equation
87,994.24 : 121,314.58 = 69,904.98 : x - Step 2: Convert to fraction form
87,994.24/121,314.58 = 69,904.98/x - Step 3: Cross multiply
87,994.24x = 121,314.58 × 69,904.98 - Step 4: Simplify right side
87,994.24x = 8,480,492,939.08 - Step 5: Solve for x
x = 8,480,492,939.08/87,994.24 - Step 6: Final answer
x = 96,375.55
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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.