Finding the Fourth Proportional to 81,126.60, 121,703.70 and 24,965.43
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Solution
The fourth proportional to 81,126.60, 121,703.70 and 24,965.43 is: 37,452.39
Step by Step Solution
- Step 1: Write the proportion equation
81,126.60 : 121,703.70 = 24,965.43 : x - Step 2: Convert to fraction form
81,126.60/121,703.70 = 24,965.43/x - Step 3: Cross multiply
81,126.60x = 121,703.70 × 24,965.43 - Step 4: Simplify right side
81,126.60x = 3,038,385,203.09 - Step 5: Solve for x
x = 3,038,385,203.09/81,126.60 - Step 6: Final answer
x = 37,452.39
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1.5x scale
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.