Finding the Fourth Proportional to 77,808.12, 107,374.12 and 43,817.00
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Solution
The fourth proportional to 77,808.12, 107,374.12 and 43,817.00 is: 60,466.84
Step by Step Solution
- Step 1: Write the proportion equation
77,808.12 : 107,374.12 = 43,817.00 : x - Step 2: Convert to fraction form
77,808.12/107,374.12 = 43,817.00/x - Step 3: Cross multiply
77,808.12x = 107,374.12 × 43,817.00 - Step 4: Simplify right side
77,808.12x = 4,704,811,060.08 - Step 5: Solve for x
x = 4,704,811,060.08/77,808.12 - Step 6: Final answer
x = 60,466.84
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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.