Finding the Fourth Proportional to 81,577.99, 112,575.76 and 45,767.17
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Solution
The fourth proportional to 81,577.99, 112,575.76 and 45,767.17 is: 63,157.65
Step by Step Solution
- Step 1: Write the proportion equation
81,577.99 : 112,575.76 = 45,767.17 : x - Step 2: Convert to fraction form
81,577.99/112,575.76 = 45,767.17/x - Step 3: Cross multiply
81,577.99x = 112,575.76 × 45,767.17 - Step 4: Simplify right side
81,577.99x = 5,152,273,945.80 - Step 5: Solve for x
x = 5,152,273,945.80/81,577.99 - Step 6: Final answer
x = 63,157.65
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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.