Finding the Fourth Proportional to 88,369.08, 121,953.60 and 50,643.44
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Solution
The fourth proportional to 88,369.08, 121,953.60 and 50,643.44 is: 69,890.39
Step by Step Solution
- Step 1: Write the proportion equation
88,369.08 : 121,953.60 = 50,643.44 : x - Step 2: Convert to fraction form
88,369.08/121,953.60 = 50,643.44/x - Step 3: Cross multiply
88,369.08x = 121,953.60 × 50,643.44 - Step 4: Simplify right side
88,369.08x = 6,176,149,824.38 - Step 5: Solve for x
x = 6,176,149,824.38/88,369.08 - Step 6: Final answer
x = 69,890.39
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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.