Finding the Fourth Proportional to 83,723.08, 125,565.18 and 31,157.32
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Solution
The fourth proportional to 83,723.08, 125,565.18 and 31,157.32 is: 46,728.75
Step by Step Solution
- Step 1: Write the proportion equation
83,723.08 : 125,565.18 = 31,157.32 : x - Step 2: Convert to fraction form
83,723.08/125,565.18 = 31,157.32/x - Step 3: Cross multiply
83,723.08x = 125,565.18 × 31,157.32 - Step 4: Simplify right side
83,723.08x = 3,912,274,494.12 - Step 5: Solve for x
x = 3,912,274,494.12/83,723.08 - Step 6: Final answer
x = 46,728.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.