Finding the Fourth Proportional to 81,904.68, 122,886.06 and 46,873.80
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Solution
The fourth proportional to 81,904.68, 122,886.06 and 46,873.80 is: 70,327.32
Step by Step Solution
- Step 1: Write the proportion equation
81,904.68 : 122,886.06 = 46,873.80 : x - Step 2: Convert to fraction form
81,904.68/122,886.06 = 46,873.80/x - Step 3: Cross multiply
81,904.68x = 122,886.06 × 46,873.80 - Step 4: Simplify right side
81,904.68x = 5,760,136,599.23 - Step 5: Solve for x
x = 5,760,136,599.23/81,904.68 - Step 6: Final answer
x = 70,327.32
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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.