Finding the Fourth Proportional to 81,803.93, 112,886.53 and 45,995.99
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Solution
The fourth proportional to 81,803.93, 112,886.53 and 45,995.99 is: 63,472.83
Step by Step Solution
- Step 1: Write the proportion equation
81,803.93 : 112,886.53 = 45,995.99 : x - Step 2: Convert to fraction form
81,803.93/112,886.53 = 45,995.99/x - Step 3: Cross multiply
81,803.93x = 112,886.53 × 45,995.99 - Step 4: Simplify right side
81,803.93x = 5,192,327,025.59 - Step 5: Solve for x
x = 5,192,327,025.59/81,803.93 - Step 6: Final answer
x = 63,472.83
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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.